diff --git a/simple-translate/_locales/af_ZA/messages.json b/simple-translate/_locales/af_ZA/messages.json
index 0264e4f..d2f5512 100644
--- a/simple-translate/_locales/af_ZA/messages.json
+++ b/simple-translate/_locales/af_ZA/messages.json
@@ -15,7 +15,7 @@
         "message": "Target language"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greek<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Hungarian<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Font size"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/ar_SA/messages.json b/simple-translate/_locales/ar_SA/messages.json
index 0264e4f..d2f5512 100644
--- a/simple-translate/_locales/ar_SA/messages.json
+++ b/simple-translate/_locales/ar_SA/messages.json
@@ -15,7 +15,7 @@
         "message": "Target language"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greek<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Hungarian<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Font size"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/ca_ES/messages.json b/simple-translate/_locales/ca_ES/messages.json
index 0264e4f..d2f5512 100644
--- a/simple-translate/_locales/ca_ES/messages.json
+++ b/simple-translate/_locales/ca_ES/messages.json
@@ -15,7 +15,7 @@
         "message": "Target language"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greek<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Hungarian<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Font size"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/cs_CZ/messages.json b/simple-translate/_locales/cs_CZ/messages.json
index 0264e4f..d2f5512 100644
--- a/simple-translate/_locales/cs_CZ/messages.json
+++ b/simple-translate/_locales/cs_CZ/messages.json
@@ -15,7 +15,7 @@
         "message": "Target language"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greek<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Hungarian<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Font size"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/da_DK/messages.json b/simple-translate/_locales/da_DK/messages.json
index 0264e4f..d2f5512 100644
--- a/simple-translate/_locales/da_DK/messages.json
+++ b/simple-translate/_locales/da_DK/messages.json
@@ -15,7 +15,7 @@
         "message": "Target language"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greek<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Hungarian<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Font size"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/de_DE/messages.json b/simple-translate/_locales/de_DE/messages.json
index 10c55af..63c4a20 100644
--- a/simple-translate/_locales/de_DE/messages.json
+++ b/simple-translate/_locales/de_DE/messages.json
@@ -15,7 +15,7 @@
         "message": "Zielsprache"
     },
     "langList": {
-        "message": "<option value=\"af\">Afrikaans<\/option><option value=\"sq\">Albanisch<\/option><option value=\"am\">Amharisch<\/option><option value=\"ar\">Arabisch<\/option><option value=\"hy\">Armenisch<\/option><option value=\"az\">Aserbeidschanisch<\/option><option value=\"eu\">Baskisch<\/option><option value=\"bn\">Bengali<\/option><option value=\"my\">Birmanisch<\/option><option value=\"bs\">Bosnisch<\/option><option value=\"bg\">Bulgarisch<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"zh-TW\">Chinesisch (Taiwan)<\/option><option value=\"zh-CN\">Chinesisch (VRC)<\/option><option value=\"de\">Deutsch<\/option><option value=\"da\">Dänisch<\/option><option value=\"en\">Englisch<\/option><option value=\"eo\">Esperanto<\/option><option value=\"et\">Estnisch<\/option><option value=\"fi\">Finnisch<\/option><option value=\"fr\">Französisch<\/option><option value=\"fy\">Friesisch<\/option><option value=\"gl\">Galicisch<\/option><option value=\"ka\">Georgisch<\/option><option value=\"el\">Griechisch<\/option><option value=\"gu\">Gujarati<\/option><option value=\"gd\">Gälisch-Schottisch<\/option><option value=\"ht\">Haitien<\/option><option value=\"ha\">Haussa<\/option><option value=\"haw\">Hawaiisch<\/option><option value=\"he\">Hebräisch<\/option><option value=\"hi\">Hindi<\/option><option value=\"ig\">Ibo<\/option><option value=\"id\">Indonesisch<\/option><option value=\"ga\">Irisch<\/option><option value=\"is\">Isländisch<\/option><option value=\"it\">Italienisch<\/option><option value=\"ja\">Japanisch<\/option><option value=\"jv\">Javanisch<\/option><option value=\"yi\">Jiddisch<\/option><option value=\"kn\">Kannada<\/option><option value=\"kk\">Kasachisch<\/option><option value=\"ca\">Katalanisch<\/option><option value=\"km\">Khmer<\/option><option value=\"ky\">Kirgisisch<\/option><option value=\"ko\">Koreanisch<\/option><option value=\"co\">Korsisch<\/option><option value=\"hr\">Kroatisch<\/option><option value=\"ku\">Kurdisch<\/option><option value=\"cy\">Kymrisch<\/option><option value=\"lo\">Laotisch<\/option><option value=\"la\">Latein<\/option><option value=\"lv\">Lettisch<\/option><option value=\"lt\">Litauisch<\/option><option value=\"lb\">Luxemburgisch<\/option><option value=\"mk\">Makedonisch<\/option><option value=\"mg\">Malagassi<\/option><option value=\"ms\">Malaiisch<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltesisch<\/option><option value=\"mi\">Maori<\/option><option value=\"mr\">Marathi<\/option><option value=\"hmn\">Miao<\/option><option value=\"mn\">Mongolisch<\/option><option value=\"ne\">Nepali<\/option><option value=\"nl\">Niederländisch<\/option><option value=\"no\">Norwegisch<\/option><option value=\"ny\">Nyanja<\/option><option value=\"pa\">Pandschabi<\/option><option value=\"ps\">Paschtu<\/option><option value=\"fa\">Persisch<\/option><option value=\"pl\">Polnisch<\/option><option value=\"pt\">Portugiesisch<\/option><option value=\"ro\">Rumänisch<\/option><option value=\"ru\">Russisch<\/option><option value=\"sm\">Samoanisch<\/option><option value=\"sn\">Schona<\/option><option value=\"sv\">Schwedisch<\/option><option value=\"sr\">Serbisch<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Singhalesisch<\/option><option value=\"sk\">Slowakisch<\/option><option value=\"sl\">Slowenisch<\/option><option value=\"so\">Somali<\/option><option value=\"sx\">Sotho<\/option><option value=\"es\">Spanisch<\/option><option value=\"su\">Sundanesisch<\/option><option value=\"sw\">Swahili<\/option><option value=\"tg\">Tadschikisch<\/option><option value=\"tl\">Tagalog<\/option><option value=\"ta\">Tamil<\/option><option value=\"te\">Telugu<\/option><option value=\"th\">Thailändisch<\/option><option value=\"cs\">Tschechisch<\/option><option value=\"tr\">Türkisch<\/option><option value=\"uk\">Ukrainisch<\/option><option value=\"hu\">Ungarisch<\/option><option value=\"ur\">Urdu<\/option><option value=\"uz\">Usbekisch<\/option><option value=\"vi\">Vietnamesisch<\/option><option value=\"be\">Weißrussisch<\/option><option value=\"xh\">Xhosa<\/option><option value=\"yo\">Yoruba<\/option><option value=\"zu\">Zulu<\/option>"
+        "message": "af:Afrikaans, sq:Albanisch, am:Amharisch, ar:Arabisch, hy:Armenisch, az:Aserbeidschanisch, eu:Baskisch, be:Weißrussisch, bn:Bengali, bs:Bosnisch, bg:Bulgarisch, ca:Katalanisch, ceb:Cebuano, ny:Nyanja, zh-CN:Chinesisch (VRC), zh-TW:Chinesisch (Taiwan), co:Korsisch, hr:Kroatisch, cs:Tschechisch, da:Dänisch, nl:Niederländisch, en:Englisch, eo:Esperanto, et:Estnisch, fi:Finnisch, fr:Französisch, fy:Friesisch, gl:Galicisch, ka:Georgisch, de:Deutsch, el:Griechisch, gu:Gujarati, ht:Haitien, ha:Haussa, haw:Hawaiisch, he:Hebräisch, hi:Hindi, hu:Ungarisch, is:Isländisch, ig:Ibo, id:Indonesisch, ga:Irisch, it:Italienisch, ja:Japanisch, jv:Javanisch, kn:Kannada, kk:Kasachisch, km:Khmer, ky:Kirgisisch, ko:Koreanisch, ku:Kurdisch, lo:Laotisch, la:Latein, lv:Lettisch, lt:Litauisch, lb:Luxemburgisch, mk:Makedonisch, mg:Malagassi, ms:Malaiisch, ml:Malayalam, mt:Maltesisch, mi:Maori, mr:Marathi, mn:Mongolisch, hmn:Miao, my:Birmanisch, ne:Nepali, no:Norwegisch, fa:Persisch, pl:Polnisch, pt:Portugiesisch, pa:Pandschabi, ps:Paschtu, ro:Rumänisch, ru:Russisch, sm:Samoanisch, gd:Gälisch-Schottisch, sr:Serbisch, sn:Schona, sd:Sindhi, si:Singhalesisch, sk:Slowakisch, sl:Slowenisch, so:Somali, sx:Sotho, es:Spanisch, su:Sundanesisch, sw:Swahili, sv:Schwedisch, tl:Tagalog, tg:Tadschikisch, ta:Tamil, te:Telugu, th:Thailändisch, tr:Türkisch, uk:Ukrainisch, ur:Urdu, uz:Usbekisch, vi:Vietnamesisch, cy:Kymrisch, xh:Xhosa, yi:Jiddisch, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Alternative Übersetzungen anzeigen"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Schriftgröße"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/el_GR/messages.json b/simple-translate/_locales/el_GR/messages.json
index 46b93e7..ef67073 100644
--- a/simple-translate/_locales/el_GR/messages.json
+++ b/simple-translate/_locales/el_GR/messages.json
@@ -15,7 +15,7 @@
         "message": "Γλώσσα προς μετάφραση"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Ελληνικά<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Hungarian<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Μέγεθος γραμματοσειράς"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/en_US/messages.json b/simple-translate/_locales/en_US/messages.json
index 0264e4f..d2f5512 100644
--- a/simple-translate/_locales/en_US/messages.json
+++ b/simple-translate/_locales/en_US/messages.json
@@ -15,7 +15,7 @@
         "message": "Target language"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greek<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Hungarian<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Font size"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/es_ES/messages.json b/simple-translate/_locales/es_ES/messages.json
index 0d0b255..2b7a8d0 100644
--- a/simple-translate/_locales/es_ES/messages.json
+++ b/simple-translate/_locales/es_ES/messages.json
@@ -15,7 +15,7 @@
         "message": "Idioma de destino"
     },
     "langList": {
-        "message": "<option value=\"is\">Islandés<\/option><option value=\"ga\">Irlandés<\/option><option value=\"az\">Azerbaiyán<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amárico<\/option><option value=\"ar\">Árabe<\/option><option value=\"sq\">Albanés<\/option><option value=\"hy\">Armenio<\/option><option value=\"it\">Italiano<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesio<\/option><option value=\"cy\">Galés<\/option><option value=\"uk\">Ucraniano<\/option><option value=\"uz\">Uzbeko<\/option><option value=\"your\">Urdu<\/option><option value=\"et\">Estonio<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Holandés<\/option><option value=\"kk\">Kazajo<\/option><option value=\"ca\">Catalán<\/option><option value=\"gl\">Gallego<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Griego<\/option><option value=\"ky\">Kirguizistán<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdo<\/option><option value=\"hr\">Croata<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsa<\/option><option value=\"sm\">Samoa<\/option><option value=\"jv\">Javanés<\/option><option value=\"ka\">Georgia<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Cingalés<\/option><option value=\"sv\">Sueco<\/option><option value=\"zu\">Zulú<\/option><option value=\"gd\">Gaélico escocés<\/option><option value=\"es\">Español<\/option><option value=\"sk\">Eslovaco<\/option><option value=\"sl\">Esloveno<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanés<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbio<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">somalí<\/option><option value=\"th\">Tailandés<\/option><option value=\"tl\">Chino simplificado<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Checa<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danés<\/option><option value=\"de\">Alemán<\/option><option value=\"tr\">Turco<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Noruego<\/option><option value=\"ht\">Haití<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Vasco<\/option><option value=\"haw\">Hawaiano<\/option><option value=\"hu\">Húngaro<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finlandés<\/option><option value=\"fr\">Francés<\/option><option value=\"fy\">Frisón<\/option><option value=\"bg\">Búlgaro<\/option><option value=\"vi\">Vietnamita<\/option><option value=\"he\">Hebreo<\/option><option value=\"be\">Bielorruso<\/option><option value=\"fa\">Persa<\/option><option value=\"bn\">Bengalí<\/option><option value=\"pl\">Polaco<\/option><option value=\"bs\">Bosnio<\/option><option value=\"pt\">Portugués<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonio<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malgache<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltés<\/option><option value=\"ms\">Malayo<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongol<\/option><option value=\"hmn\">Monje<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laos<\/option><option value=\"la\">Latina<\/option><option value=\"lv\">Letonia<\/option><option value=\"lt\">Lituania<\/option><option value=\"ro\">Rumano<\/option><option value=\"lb\">Luxemburgués<\/option><option value=\"ru\">Ruso<\/option><option value=\"en\">Inglés<\/option><option value=\"ko\">Coreano<\/option><option value=\"zh-CN\">Chino (PRC)<\/option><option value=\"zh-TW\">Chino (Taiwán)<\/option><option value=\"ja\">Japonés<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Tamaño de la fuente"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/fi_FI/messages.json b/simple-translate/_locales/fi_FI/messages.json
index 0264e4f..d2f5512 100644
--- a/simple-translate/_locales/fi_FI/messages.json
+++ b/simple-translate/_locales/fi_FI/messages.json
@@ -15,7 +15,7 @@
         "message": "Target language"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greek<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Hungarian<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Font size"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/fr_FR/messages.json b/simple-translate/_locales/fr_FR/messages.json
index daead90..c2bc2ac 100644
--- a/simple-translate/_locales/fr_FR/messages.json
+++ b/simple-translate/_locales/fr_FR/messages.json
@@ -15,7 +15,7 @@
         "message": "Langue cible"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greek<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Hungarian<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Font size"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/he_IL/messages.json b/simple-translate/_locales/he_IL/messages.json
index 0264e4f..d2f5512 100644
--- a/simple-translate/_locales/he_IL/messages.json
+++ b/simple-translate/_locales/he_IL/messages.json
@@ -15,7 +15,7 @@
         "message": "Target language"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greek<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Hungarian<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Font size"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/hu_HU/messages.json b/simple-translate/_locales/hu_HU/messages.json
index 629d691..9059014 100644
--- a/simple-translate/_locales/hu_HU/messages.json
+++ b/simple-translate/_locales/hu_HU/messages.json
@@ -15,7 +15,7 @@
         "message": "Célnyelven"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greek<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Magyar<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Betűméret"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/id_ID/messages.json b/simple-translate/_locales/id_ID/messages.json
index 0a149a5..9a100b8 100644
--- a/simple-translate/_locales/id_ID/messages.json
+++ b/simple-translate/_locales/id_ID/messages.json
@@ -15,109 +15,118 @@
         "message": "Bahasa Target"
     },
     "langList": {
-        "message": "<option value=\"is\"> Islandia<\/option> <option value=\"ga\"> Irlandia<\/option> <option value=\"az\"> Azerbaijan<\/option> <option value=\"af\"> Afrikaans<\/option> <option value=\"am\"> Amhar<\/option> <option value=\"ar\"> bahasa Arab<\/option> <option value=\"sq\"> Albania<\/option> <option value=\"hy\"> Armenia<\/option> <option value=\"it\"> Italia<\/option> <option value=\"yi\"> bahasa Yiddish<\/option> <option value=\"ig\"> Igbo<\/option> <option value=\"id\"> Indonesia<\/option> <option value=\"cy\"> Welsh<\/option> <option value=\"uk\"> Ukraina<\/option> <option value=\"uz\"> Uzbek<\/option> <option value=\"your\"> bahasa Urdu<\/option> <option value=\"et\"> Estonia<\/option> <option value=\"eo\"> Esperanto<\/option> <option value=\"nl\"> Belanda<\/option> <option value=\"kk\"> Kazakh<\/option> <option value=\"ca\"> Catalan<\/option> <option value=\"gl\"> Galicia<\/option> <option value=\"kn\"> Kannada<\/option> <option value=\"el\"> Yunani<\/option> <option value=\"ky\"> Kirghiz<\/option> <option value=\"gu\"> Gujarati<\/option> <option value=\"km\"> Khmer<\/option> <option value=\"ku\"> Kurdi<\/option> <option value=\"hr\"> Kroasia<\/option> <option value=\"xh\"> Xosa<\/option> <option value=\"co\"> Korsika<\/option> <option value=\"sm\"> Samoa<\/option> <option value=\"jv\"> Jawa<\/option> <option value=\"ka\"> Georgia<\/option> <option value=\"sn\"> Shona<\/option> <option value=\"sd\"> Sindhi<\/option> <option value=\"si\"> Sinhala<\/option> <option value=\"sv\"> Swedia<\/option> <option value=\"zu\"> Zulu<\/option> <option value=\"gd\"> bahasa Gaelik Skotlandia<\/option> <option value=\"es\"> Spanyol<\/option> <option value=\"sk\"> Slowakia<\/option> <option value=\"sl\"> Slovenia<\/option> <option value=\"sw\"> bahasa Swahili<\/option> <option value=\"su\"> Sunda<\/option> <option value=\"ceb\"> Cebuano<\/option> <option value=\"sr\"> Serbia<\/option> <option value=\"sx\"> Sepedi<\/option> <option value=\"so\"> Somalia<\/option> <option value=\"th\"> Thailand<\/option> <option value=\"tl\"> bahasa Tagalog<\/option> <option value=\"tg\"> Tajiki<\/option> <option value=\"ta\"> Tamil<\/option> <option value=\"cs\"> Ceko<\/option> <option value=\"ny\"> Chewa<\/option> <option value=\"te\"> Bahasa Telugu<\/option> <option value=\"da\"> Denmark<\/option> <option value=\"de\"> Jerman<\/option> <option value=\"tr\"> Turki<\/option> <option value=\"ne\"> bahasa Nepal<\/option> <option value=\"no\"> Norwegia<\/option> <option value=\"ht\"> Haiti<\/option> <option value=\"ha\"> Hausa<\/option> <option value=\"ps\"> Pushto<\/option> <option value=\"eu\"> Basque<\/option> <option value=\"haw\"> Hawaii<\/option> <option value=\"hu\"> Hongaria<\/option> <option value=\"pa\"> Punjabi<\/option> <option value=\"hi\"> Hindi<\/option> <option value=\"fi\"> Finlandia<\/option> <option value=\"fr\"> Perancis<\/option> <option value=\"fy\"> Frisian<\/option> <option value=\"bg\"> Bulgaria<\/option> <option value=\"vi\"> Vietnam<\/option> <option value=\"he\"> bahasa Ibrani<\/option> <option value=\"be\"> Belarusia<\/option> <option value=\"fa\"> Persia<\/option> <option value=\"bn\"> bahasa Bengali<\/option> <option value=\"pl\"> Polandia<\/option> <option value=\"bs\"> Bahasa Bosnia<\/option> <option value=\"pt\"> Portugis<\/option> <option value=\"mi\"> Maori<\/option> <option value=\"mk\"> Makedonia<\/option> <option value=\"mr\"> Marathi<\/option> <option value=\"mg\"> Malagasi<\/option> <option value=\"ml\"> bahasa Malayalam<\/option> <option value=\"mt\"> Malta<\/option> <option value=\"ms\"> Melayu<\/option> <option value=\"my\"> Myanmar<\/option> <option value=\"mn\"> Mongolia<\/option> <option value=\"hmn\"> biarawan<\/option> <option value=\"yo\"> Yoruba<\/option> <option value=\"lo\"> Laos<\/option> <option value=\"la\"> Latin<\/option> <option value=\"lv\"> Latvia<\/option> <option value=\"lt\"> Lituania<\/option> <option value=\"ro\"> Rumania<\/option> <option value=\"lb\"> Luksemburg<\/option> <option value=\"ru\"> Rusia<\/option> <option value=\"en\"> bahasa Inggris<\/option> <option value=\"ko\"> Korea<\/option> <option value=\"zh-CN\"> Cina (RRC)<\/option> <option value=\"zh-TW\"> China (Taiwan)<\/option> <option value=\"ja\"> Jepang<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
-        "message": "Settings"
+        "message": "Pengaturan"
     },
     "generalLabel": {
-        "message": "General"
+        "message": "Umum"
     },
     "targetLangCaptionLabel": {
-        "message": "Select the default target language."
+        "message": "Pilih bahasa target normal."
     },
     "webPageLabel": {
-        "message": "Web page"
+        "message": "Halaman web"
+    },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
     },
     "ifShowButtonLabel": {
-        "message": "Display the button when text is selected"
+        "message": "Menampilkan tombol ketika teks yang dipilih"
     },
     "ifShowButtonCaptionLabel": {
-        "message": "Display the translation button when text is selected on the web page."
+        "message": "Menampilkan tombol terjemahan ketika teks yang dipilih pada halaman web."
     },
     "ifCheckLangLabel": {
-        "message": "Do not display the button if translation is not required"
+        "message": "Jangan menampilkan tombol jika terjemahan tidak diperlukan"
     },
     "ifCheckLangCaptionLabel": {
-        "message": "Detects the language of the selected text, and if it is the same as the target language, the button is not displayed."
+        "message": "Mendeteksi bahasa teks yang dipilih, dan jika itu adalah sama dengan bahasa target, tombol tidak ditampilkan."
     },
     "ifShowMenuLabel": {
-        "message": "Display the context menu"
+        "message": "Menampilkan menu konteks"
     },
     "ifShowMenuCaptionLabel": {
-        "message": "Add items to the context menu displayed when right clicking on the web page."
+        "message": "Menambahkan item ke menu konteks yang ditampilkan bila mengklik kanan pada halaman web."
     },
     "toolbarLabel": {
-        "message": "Toolbar popup"
+        "message": "Toolbar pengaya"
     },
     "ifChangeSecondLangLabel": {
-        "message": "Automatically switch to the second language"
+        "message": "Secara otomatis beralih ke bahasa kedua"
     },
     "ifChangeSecondLangCaptionLabel": {
-        "message": "Detects the language of the input text, and if it is the same as the default target language, translate it into the second language."
+        "message": "Mendeteksi bahasa input teks, dan jika itu adalah sama dengan bahasa target default, menerjemahkannya ke dalam bahasa kedua."
     },
     "secondTargetLangLabel": {
         "message": "Bahasa kedua"
     },
     "secondTargetLangCaptionLabel": {
-        "message": "Select the second target language."
+        "message": "Pilih bahasa target yang kedua."
     },
     "styleLabel": {
-        "message": "Style"
+        "message": "Gaya"
     },
     "buttonStyleLabel": {
-        "message": "Translation button"
+        "message": "Tombol terjemahan"
     },
     "buttonStyleCaptionLabel": {
-        "message": "Specify the style of the translation button displayed on the web page."
+        "message": "Menentukan gaya tombol terjemahan yang ditampilkan pada halaman web."
     },
     "buttonSizeLabel": {
-        "message": "Size"
+        "message": "Ukuran"
     },
     "buttonPositionLabel": {
-        "message": "Display position"
+        "message": "Tampilan Posisi"
     },
     "rightUpLabel": {
-        "message": "Top right"
+        "message": "Kanan atas"
     },
     "rightDownLabel": {
         "message": "Kanan bawah"
     },
     "leftUpLabel": {
-        "message": "Top left"
+        "message": "Kiri atas"
     },
     "leftDownLabel": {
-        "message": "Bottom left"
+        "message": "Kiri bawah"
     },
     "panelStyleLabel": {
-        "message": "Translation panel"
+        "message": "Panel terjemahan"
     },
     "panelStyleCaptionLabel": {
-        "message": "Specify the style of the translation panel displayed on the web page."
+        "message": "Menentukan gaya panel terjemahan yang ditampilkan pada halaman web."
     },
     "widthLabel": {
-        "message": "Width"
+        "message": "Lebar"
     },
     "heightLabel": {
-        "message": "Height"
+        "message": "Tinggi"
     },
     "fontSizeLabel": {
         "message": "Ukuran huruf"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
-        "message": "Information"
+        "message": "Informasi"
     },
     "licenseLabel": {
-        "message": "License"
+        "message": "Lisensi"
     },
     "donationLabel": {
-        "message": "Please make a donation"
+        "message": "Silakan memberi donasi"
     },
     "donationCaptionLabel": {
-        "message": "Thank you for using Simple Translate.<br>Your support will be a big encouragement, as I continue to develop the add-on.<br>If you like Simple Translate, I would be pleased if you could consider donating."
+        "message": "Terima kasih telah menggunakan menerjemahkan sederhana. <br>Dukungan Anda akan menjadi dorongan besar, karena saya terus mengembangkan add-on. <br>Jika Anda suka menerjemahkan sederhana, saya akan senang jika Anda bisa mempertimbangkan sumbangan."
     },
     "addonPageLabel": {
-        "message": "Add-on page"
+        "message": "Halaman pengaya"
     },
     "addonUrl": {
         "message": "https:\/\/addons.mozilla.org\/en-US\/firefox\/addon\/simple-translate\/?src=optionpage"
diff --git a/simple-translate/_locales/it_IT/messages.json b/simple-translate/_locales/it_IT/messages.json
index 3d79c41..2e4116e 100644
--- a/simple-translate/_locales/it_IT/messages.json
+++ b/simple-translate/_locales/it_IT/messages.json
@@ -15,7 +15,7 @@
         "message": "Lingua di bersaglio"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greek<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Hungarian<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Dimensione del font"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/ja_JP/messages.json b/simple-translate/_locales/ja_JP/messages.json
index 897396a..a38d160 100644
--- a/simple-translate/_locales/ja_JP/messages.json
+++ b/simple-translate/_locales/ja_JP/messages.json
@@ -15,7 +15,7 @@
         "message": "翻訳先の言語"
     },
     "langList": {
-        "message": "<option value=\"en\">英語<\/option><option value=\"ko\">韓国語<\/option><option value=\"zh-CN\">中国語(簡体)<\/option><option value=\"zh-TW\">中国語(繁体)<\/option><option value=\"ja\">日本語<\/option><option value=\"is\">アイスランド語<\/option><option value=\"ga\">アイルランド語<\/option><option value=\"az\">アゼルバイジャン語<\/option><option value=\"af\">アフリカーンス語<\/option><option value=\"am\">アムハラ語<\/option><option value=\"ar\">アラビア語<\/option><option value=\"sq\">アルバニア語<\/option><option value=\"hy\">アルメニア語<\/option><option value=\"it\">イタリア語<\/option><option value=\"yi\">イディッシュ語<\/option><option value=\"ig\">イボ語<\/option><option value=\"id\">インドネシア語<\/option><option value=\"cy\">ウェールズ語<\/option><option value=\"uk\">ウクライナ語<\/option><option value=\"uz\">ウズベク語<\/option><option value=\"ur\">ウルドゥ語<\/option><option value=\"et\">エストニア語<\/option><option value=\"eo\">エスペラント語<\/option><option value=\"nl\">オランダ語<\/option><option value=\"kk\">カザフ語<\/option><option value=\"ca\">カタルーニャ語<\/option><option value=\"gl\">ガリシア語<\/option><option value=\"kn\">カンナダ語<\/option><option value=\"el\">ギリシャ語<\/option><option value=\"ky\">キルギス語<\/option><option value=\"gu\">グジャラト語<\/option><option value=\"km\">クメール語<\/option><option value=\"ku\">クルド語<\/option><option value=\"hr\">クロアチア語<\/option><option value=\"xh\">コーサ語<\/option><option value=\"co\">コルシカ語<\/option><option value=\"sm\">サモア語<\/option><option value=\"jw\">ジャワ語<\/option><option value=\"ka\">ジョージア(グルジア)語<\/option><option value=\"sn\">ショナ語<\/option><option value=\"sd\">シンド語<\/option><option value=\"si\">シンハラ語<\/option><option value=\"sv\">スウェーデン語<\/option><option value=\"zu\">ズールー語<\/option><option value=\"gd\">スコットランド ゲール語<\/option><option value=\"es\">スペイン語<\/option><option value=\"sk\">スロバキア語<\/option><option value=\"sl\">スロベニア語<\/option><option value=\"sw\">スワヒリ語<\/option><option value=\"su\">スンダ語<\/option><option value=\"ceb\">セブアノ語<\/option><option value=\"sr\">セルビア語<\/option><option value=\"st\">ソト語<\/option><option value=\"so\">ソマリ語<\/option><option value=\"th\">タイ語<\/option><option value=\"tl\">タガログ語<\/option><option value=\"tg\">タジク語<\/option><option value=\"ta\">タミル語<\/option><option value=\"cs\">チェコ語<\/option><option value=\"ny\">チェワ語<\/option><option value=\"te\">テルグ語<\/option><option value=\"da\">デンマーク語<\/option><option value=\"de\">ドイツ語<\/option><option value=\"tr\">トルコ語<\/option><option value=\"ne\">ネパール語<\/option><option value=\"no\">ノルウェー語<\/option><option value=\"ht\">ハイチ語<\/option><option value=\"ha\">ハウサ語<\/option><option value=\"ps\">パシュト語<\/option><option value=\"eu\">バスク語<\/option><option value=\"haw\">ハワイ語<\/option><option value=\"hu\">ハンガリー語<\/option><option value=\"pa\">パンジャブ語<\/option><option value=\"hi\">ヒンディー語<\/option><option value=\"fi\">フィンランド語<\/option><option value=\"fr\">フランス語<\/option><option value=\"fy\">フリジア語<\/option><option value=\"bg\">ブルガリア語<\/option><option value=\"vi\">ベトナム語<\/option><option value=\"iw\">ヘブライ語<\/option><option value=\"be\">ベラルーシ語<\/option><option value=\"fa\">ペルシャ語<\/option><option value=\"bn\">ベンガル語<\/option><option value=\"pl\">ポーランド語<\/option><option value=\"bs\">ボスニア語<\/option><option value=\"pt\">ポルトガル語<\/option><option value=\"mi\">マオリ語<\/option><option value=\"mk\">マケドニア語<\/option><option value=\"mr\">マラーティー語<\/option><option value=\"mg\">マラガシ語<\/option><option value=\"ml\">マラヤーラム語<\/option><option value=\"mt\">マルタ語<\/option><option value=\"ms\">マレー語<\/option><option value=\"my\">ミャンマー語<\/option><option value=\"mn\">モンゴル語<\/option><option value=\"hmn\">モン語<\/option><option value=\"yo\">ヨルバ語<\/option><option value=\"lo\">ラオ語<\/option><option value=\"la\">ラテン語<\/option><option value=\"lv\">ラトビア語<\/option><option value=\"lt\">リトアニア語<\/option><option value=\"ro\">ルーマニア語<\/option><option value=\"lb\">ルクセンブルク語<\/option><option value=\"ru\">ロシア語<\/option>"
+        "message": "af:アフリカーンス語, sq:アルバニア語, am:アムハラ語, ar:アラビア語, hy:アルメニア語, az:アゼルバイジャン語, eu:バスク語, be:ベラルーシ語, bn:ベンガル語, bs:ボスニア語, bg:ブルガリア語, ca:カタルーニャ語, ceb:セブアノ語, ny:チェワ語, zh-CN:中国語 (簡体), zh-TW:中国語 (繁体), co:コルシカ語, hr:クロアチア語, cs:チェコ語, da:デンマーク語, nl:オランダ語, en:英語, eo:エスペラント語, et:エストニア語, fi:フィンランド語, fr:フランス語, fy:フリジア語, gl:ガリシア語, ka:ジョージア(グルジア)語, de:ドイツ語, el:ギリシャ語, gu:グジャラト語, ht:ハイチ語, ha:ハウサ語, haw:ハワイ語, he:ヘブライ語, hi:ヒンディー語, hu:ハンガリー語, is:アイスランド語, ig:イボ語, id:インドネシア語, ga:アイルランド語, it:イタリア語, ja:日本語, jv:ジャワ語, kn:カンナダ語, kk:カザフ語, km:クメール語, ky:キルギス語, ko:韓国語, ku:クルド語, lo:ラオ語, la:ラテン語, lv:ラトビア語, lt:リトアニア語, lb:ルクセンブルク語, mk:マケドニア語, mg:マラガシ語, ms:マレー語, ml:マラヤーラム語, mt:マルタ語, mi:マオリ語, mr:マラーティー語, mn:モンゴル語, hmn:モン語, my:ミャンマー語, ne:ネパール語, no:ノルウェー語, fa:ペルシャ語, pl:ポーランド語, pt:ポルトガル語, pa:パンジャブ語, ps:パシュト語, ro:ルーマニア語, ru:ロシア語, sm:サモア語, gd:スコットランド ゲール語, sr:セルビア語, sn:ショナ語, sd:シンド語, si:シンハラ語, sk:スロバキア語, sl:スロベニア語, so:ソマリ語, sx:ソト語, es:スペイン語, su:スンダ語, sw:スワヒリ語, sv:スウェーデン語, tl:タガログ語, tg:タジク語, ta:タミル語, te:テルグ語, th:タイ語, tr:トルコ語, uk:ウクライナ語, ur:ウルドゥ語, uz:ウズベク語, vi:ベトナム語, cy:ウェールズ語, xh:コーサ語, yi:イディッシュ語, yo:ヨルバ語, zu:ズールー語"
     },
     "settingsLabel": {
         "message": "設定"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "webページ"
     },
+    "ifShowCandidateLabel": {
+        "message": "翻訳候補を表示する"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "一つの語句が翻訳された時に複数の候補を表示します。"
+    },
     "ifShowButtonLabel": {
         "message": "テキスト選択時にボタンを表示する"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "フォントサイズ"
     },
+    "bgColorLabel": {
+        "message": "背景色"
+    },
     "informationLabel": {
         "message": "情報"
     },
diff --git a/simple-translate/_locales/ko_KR/messages.json b/simple-translate/_locales/ko_KR/messages.json
index 0264e4f..d2f5512 100644
--- a/simple-translate/_locales/ko_KR/messages.json
+++ b/simple-translate/_locales/ko_KR/messages.json
@@ -15,7 +15,7 @@
         "message": "Target language"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greek<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Hungarian<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Font size"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/nl_NL/messages.json b/simple-translate/_locales/nl_NL/messages.json
index ca3dcdf..e14ee64 100644
--- a/simple-translate/_locales/nl_NL/messages.json
+++ b/simple-translate/_locales/nl_NL/messages.json
@@ -15,7 +15,7 @@
         "message": "Doeltaal"
     },
     "langList": {
-        "message": "<option value=\"is\"> IJslandse<\/option> <option value=\"ga\"> Ierse<\/option><option value=\"az\"> Azerbeidzjaanse<\/option> <option value=\"af\"> Afrikaans<\/option> <option value=\"am\"> Amhaars<\/option> <option value=\"ar\"> Arabisch<\/option> <option value=\"sq\"> Albanese<\/option> <option value=\"hy\"> Armeense<\/option> <option value=\"it\"> Italiaanse<\/option> <option value=\"yi\"> Yiddish<\/option> <option value=\"ig\"> Igbo<\/option> <option value=\"id\"> Indonesische<\/option> <option value=\"cy\"> Welsh<\/option> <option value=\"uk\"> Oekraïens<\/option> <option value=\"uz\"> Oezbeeks<\/option> <option value=\"your\"> Urdu<\/option> <option value=\"et\"> Ests<\/option> <option value=\"eo\"> Esperanto<\/option> <option value=\"nl\"> Nederlandse<\/option> <option value=\"kk\"> Kazakh<\/option> <option value=\"ca\"> Catalaans<\/option> <option value=\"gl\"> Gallicisch-<\/option> <option value=\"kn\"> Kannada<\/option> <option value=\"el\"> Grieks<\/option> <option value=\"ky\"> Kirghiz<\/option> <option value=\"gu\"> Gujarati<\/option> <option value=\"km\"> Khmer<\/option> <option value=\"ku\"> Koerdische<\/option> <option value=\"hr\"> Kroatische<\/option> <option value=\"xh\"> Xosa<\/option> <option value=\"co\"> Corsicaanse<\/option> <option value=\"sm\"> Samoan<\/option> <option value=\"jv\"> Javaans<\/option> <option value=\"ka\"> Georgisch<\/option> <option value=\"sn\"> Shona<\/option> <option value=\"sd\"> Sindhi<\/option> <option value=\"si\"> Sinhala<\/option> <option value=\"sv\"> Zweedse<\/option> <option value=\"zu\"> Zulu<\/option> <option value=\"gd\"> Schots-Gaelisch<\/option> <option value=\"es\"> Spaans<\/option> <option value=\"sk\"> Slowaakse<\/option> <option value=\"sl\"> Sloveens<\/option> <option value=\"sw\"> Swahili<\/option> <option value=\"su\"> Sundanese<\/option> <option value=\"ceb\"> Cebuano<\/option> <option value=\"sr\"> Servisch<\/option> <option value=\"sx\"> Sotho<\/option> <option value=\"so\"> Somalische<\/option> <option value=\"th\"> Thaise<\/option> <option value=\"tl\"> Tagalog<\/option> <option value=\"tg\"> Tajiki<\/option> <option value=\"ta\"> Tamil<\/option> <option value=\"cs\"> Tsjechische<\/option> <option value=\"ny\"> Nyanja<\/option> <option value=\"te\"> Telugu<\/option> <option value=\"da\"> Deense<\/option> <option value=\"de\"> Duits<\/option> <option value=\"tr\"> Turkse<\/option> <option value=\"ne\"> Nepalees<\/option> <option value=\"no\"> Noors<\/option> <option value=\"ht\"> Haïtiaanse<\/option> <option value=\"ha\"> Hausa<\/option> <option value=\"ps\"> Pushto<\/option> <option value=\"eu\"> Baskische<\/option> <option value=\"haw\"> Hawaiian<\/option> <option value=\"hu\"> Hongaarse<\/option> <option value=\"pa\"> Punjabi<\/option> <option value=\"hi\"> Hindi<\/option> <option value=\"fi\"> Finse<\/option> <option value=\"fr\"> Frans<\/option> <option value=\"fy\"> Friese<\/option> <option value=\"bg\"> Bulgaarse<\/option> <option value=\"vi\"> Vietnamees<\/option> <option value=\"he\"> Hebreeuws<\/option> <option value=\"be\"> Wit-Rusland<\/option> <option value=\"fa\"> Perzisch<\/option> <option value=\"bn\"> Bengaals<\/option> <option value=\"pl\"> Pools<\/option> <option value=\"bs\"> Bosnische<\/option> <option value=\"pt\"> Portugees<\/option> <option value=\"mi\"> Maori<\/option> <option value=\"mk\"> Macedonische<\/option> <option value=\"mr\"> Marathi<\/option> <option value=\"mg\"> Malagasi<\/option> <option value=\"ml\"> Malayalam<\/option> <option value=\"mt\"> Maltees<\/option> <option value=\"ms\"> Maleis<\/option> <option value=\"my\"> Myanmar<\/option> <option value=\"mn\"> Mongoolse<\/option> <option value=\"hmn\"> monnik<\/option> <option value=\"yo\"> Yoruba<\/option> <option value=\"lo\"> Laotiaanse<\/option> <option value=\"la\"> Latijnse<\/option> <option value=\"lv\"> Lets<\/option> <option value=\"lt\"> Litouws<\/option> <option value=\"ro\"> Roemeense<\/option> <option value=\"lb\"> Luxemburgs<\/option> <option value=\"ru\"> Russische<\/option> <option value=\"en\"> Engels<\/option> <option value=\"ko\"> Koreaans<\/option> <option value=\"zh-CN\"> Chinese (PRC)<\/option> <option value=\"zh-TW\"> Chinees (Taiwan)<\/option> <option value=\"ja\"> Japanse<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Lettertypegrootte"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/no_NO/messages.json b/simple-translate/_locales/no_NO/messages.json
index 0264e4f..d2f5512 100644
--- a/simple-translate/_locales/no_NO/messages.json
+++ b/simple-translate/_locales/no_NO/messages.json
@@ -15,7 +15,7 @@
         "message": "Target language"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greek<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Hungarian<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Font size"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/pl_PL/messages.json b/simple-translate/_locales/pl_PL/messages.json
index afd401c..547b32b 100644
--- a/simple-translate/_locales/pl_PL/messages.json
+++ b/simple-translate/_locales/pl_PL/messages.json
@@ -15,7 +15,7 @@
         "message": "Język docelowy"
     },
     "langList": {
-        "message": "<option value=\"is\"> islandzki<\/option> <option value=\"ga\"> irlandzki<\/option> <option value=\"az\"> azerski<\/option> <option value=\"af\"> afrykanerski<\/option> <option value=\"am\"> amharski<\/option> <option value=\"ar\"> arabski<\/option> <option value=\"sq\"> Albański<\/option> <option value=\"hy\"> armeński<\/option> <option value=\"it\"> włoski<\/option> <option value=\"yi\"> jidysz<\/option> <option value=\"ig\"> igbo<\/option> <option value=\"id\"> indonezyjski<\/option> <option value=\"cy\"> walijski<\/option> <option value=\"uk\"> ukraiński<\/option> <option value=\"uz\"> uzbecka<\/option> <option value=\"your\"> urdu<\/option> <option value=\"et\"> estoński<\/option> <option value=\"eo\"> esperanto<\/option> <option value=\"nl\"> holenderski<\/option> <option value=\"kk\"> kazachski<\/option> <option value=\"ca\"> kataloński<\/option> <option value=\"gl\">-Galicyjski<\/option> <option value=\"kn\"> kannada<\/option> <option value=\"el\"> grecki<\/option> <option value=\"ky\"> Kirgiska<\/option> <option value=\"gu\"> gudżarati<\/option> <option value=\"km\"> khmerski<\/option> <option value=\"ku\"> kurdyjski<\/option> <option value=\"hr\"> chorwacki<\/option> <option value=\"xh\"> Xosa<\/option> <option value=\"co\"> Korsykański<\/option> <option value=\"sm\"> samoański<\/option> <option value=\"jv\"> jawajski<\/option> <option value=\"ka\"> gruziński<\/option> <option value=\"sn\"> Shona<\/option> <option value=\"sd\"> sindhi<\/option> <option value=\"si\"> syngaleski<\/option> <option value=\"sv\"> szwedzki<\/option> <option value=\"zu\"> Zulu<\/option> <option value=\"gd\"> szkocki gaelicki<\/option> <option value=\"es\"> hiszpański<\/option> <option value=\"sk\"> słowacki<\/option> <option value=\"sl\"> słoweński<\/option> <option value=\"sw\"> Suahili<\/option> <option value=\"su\"> sudańska<\/option> <option value=\"ceb\"> Cebuano<\/option> <option value=\"sr\"> serbski<\/option> <option value=\"sx\"> sotho<\/option> <option value=\"so\"> somalijski<\/option> <option value=\"th\"> tajski<\/option> <option value=\"tl\"> Tagalog<\/option> <option value=\"tg\"> Tajiki<\/option> <option value=\"ta\"> Tamil<\/option> <option value=\"cs\"> Czeska<\/option> <option value=\"ny\"> Chewa<\/option> <option value=\"te\"> telugu<\/option> <option value=\"da\"> duński<\/option> <option value=\"de\"> niemiecki<\/option> <option value=\"tr\"> turecki<\/option> <option value=\"ne\"> nepalski<\/option> <option value=\"no\"> norweski<\/option> <option value=\"ht\"> haitański<\/option> <option value=\"ha\"> Hausa<\/option> <option value=\"ps\"> naciśnij, aby<\/option> <option value=\"eu\"> baskijski<\/option> <option value=\"haw\"> hawajski<\/option> <option value=\"hu\"> węgierski<\/option> <option value=\"pa\"> pendżabski<\/option> <option value=\"hi\"> hindi<\/option> <option value=\"fi\"> fiński<\/option> <option value=\"fr\"> francuski<\/option> <option value=\"fy\"> fryzyjski<\/option> <option value=\"bg\"> bułgarski<\/option> <option value=\"vi\"> wietnamski<\/option> <option value=\"he\"> język hebrajski<\/option> <option value=\"be\"> białoruski<\/option> <option value=\"fa\"> Perski<\/option> <option value=\"bn\"> bengalski<\/option> <option value=\"pl\"> Polski<\/option> <option value=\"bs\"> bośniacki<\/option> <option value=\"pt\"> portugalski<\/option> <option value=\"mi\"> Maori<\/option> <option value=\"mk\"> Macedoński<\/option> <option value=\"mr\"> marathi<\/option> <option value=\"mg\"> Madagaskaru<\/option> <option value=\"ml\"> malajalam<\/option> <option value=\"mt\"> Maltański<\/option> <option value=\"ms\"> język malajski<\/option> <option value=\"my\"> Myanmar<\/option> <option value=\"mn\"> mongolski<\/option> <option value=\"hmn\"> mnich<\/option> <option value=\"yo\"> Joruba<\/option> <option value=\"lo\"> laotański<\/option> <option value=\"la\"> łaciński<\/option> <option value=\"lv\"> łotewski<\/option> <option value=\"lt\"> litewski<\/option> <option value=\"ro\"> rumuński<\/option> <option value=\"lb\"> luksemburski<\/option> <option value=\"ru\"> rosyjski<\/option> <option value=\"en\"> angielski<\/option> <option value=\"ko\"> koreański<\/option> <option value=\"zh-CN\"> chiński (ChRL)<\/option> <option value=\"zh-TW\"> chiński (Tajwan)<\/option> <option value=\"ja\"> japoński<\/option><\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Ustawienia"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Strona internetowa"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Wyświetlaj przycisk, gdy tekst jest zaznaczony"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Rozmiar czcionki"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Informacje"
     },
diff --git a/simple-translate/_locales/pt_BR/messages.json b/simple-translate/_locales/pt_BR/messages.json
index affac99..c48a0d5 100644
--- a/simple-translate/_locales/pt_BR/messages.json
+++ b/simple-translate/_locales/pt_BR/messages.json
@@ -15,7 +15,7 @@
         "message": "Idioma alvo"
     },
     "langList": {
-        "message": "<option value=\"pt\">Português<\/option><option value=\"af\">Africano<\/option><option value=\"sq\">Albanês<\/option><option value=\"de\">Alemão<\/option><option value=\"am\">Amárico<\/option><option value=\"ar\">Árabe<\/option><option value=\"hy\">Armênio<\/option><option value=\"az\">Azerbaijano<\/option><option value=\"eu\">Basco<\/option><option value=\"bn\">Bengali<\/option><option value=\"be\">Bielorrusso<\/option><option value=\"bs\">Bósnio<\/option><option value=\"bg\">Búlgaro<\/option><option value=\"kk\">Cazaque<\/option><option value=\"ca\">Catalão<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"cs\">Checo<\/option><option value=\"ny\">Chewa<\/option><option value=\"zh-CN\">Chinês (PRC)<\/option><option value=\"zh-TW\">Chinês (Taiwan)<\/option><option value=\"ko\">Coreano<\/option><option value=\"co\">Corsa<\/option><option value=\"hr\">Croata<\/option><option value=\"ku\">Curdo<\/option><option value=\"da\">Dinamarquês<\/option><option value=\"sk\">Eslovaco<\/option><option value=\"sl\">Esloveno<\/option><option value=\"es\">Espanhol<\/option><option value=\"eo\">Esperanto<\/option><option value=\"et\">Estoniano<\/option><option value=\"fi\">Finlandês<\/option><option value=\"fr\">Francês<\/option><option value=\"fy\">Frísio<\/option><option value=\"gd\">Gaélico Escocês<\/option><option value=\"gl\">Galego<\/option><option value=\"cy\">Galês<\/option><option value=\"ka\">Georgiano<\/option><option value=\"el\">Grego<\/option><option value=\"gu\">Gujarati<\/option><option value=\"ht\">Haitiano<\/option><option value=\"ha\">Hausa<\/option><option value=\"haw\">Havaiano<\/option><option value=\"he\">Hebraico<\/option><option value=\"hi\">Hindi<\/option><option value=\"nl\">Holandês<\/option><option value=\"hu\">Húngaro<\/option><option value=\"ig\">Igbo<\/option><option value=\"yi\">Iídiche<\/option><option value=\"id\">Indonésio<\/option><option value=\"en\">Inglês<\/option><option value=\"ga\">Irlandês<\/option><option value=\"is\">Islandês<\/option><option value=\"it\">Italiano<\/option><option value=\"ja\">Japonês<\/option><option value=\"jv\">Javanês<\/option><option value=\"kn\">Kannada<\/option><option value=\"km\">Khmer<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"lo\">Laociano<\/option><option value=\"la\">Latim<\/option><option value=\"lv\">Letão<\/option><option value=\"lt\">Lituano<\/option><option value=\"lb\">Luxemburguês<\/option><option value=\"mk\">Macedônio<\/option><option value=\"ms\">Malaio<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mg\">Malgaxe<\/option><option value=\"mt\">Maltês<\/option><option value=\"mi\">Maori<\/option><option value=\"mr\">Marathi<\/option><option value=\"hmn\">Monge<\/option><option value=\"mn\">Mongol<\/option><option value=\"my\">Myanmar<\/option><option value=\"ne\">Nepalês<\/option><option value=\"no\">Norueguês<\/option><option value=\"fa\">Persa<\/option><option value=\"pl\">Polonês<\/option><option value=\"pa\">Punjabi<\/option><option value=\"ps\">Pushto<\/option><option value=\"ro\">Romeno<\/option><option value=\"ru\">Russo<\/option><option value=\"sm\">Samoano<\/option><option value=\"sr\">Sérvio<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"so\">Somali<\/option><option value=\"sx\">Sotho<\/option><option value=\"su\">Sudanês<\/option><option value=\"sv\">Sueco<\/option><option value=\"sw\">Swahili<\/option><option value=\"tl\">Tagalog<\/option><option value=\"th\">Tailandês<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tâmil<\/option><option value=\"te\">Telugu<\/option><option value=\"tr\">Turco<\/option><option value=\"uk\">Ucraniano<\/option><option value=\"ur\">Urdu<\/option><option value=\"uz\">Uzbeque<\/option><option value=\"vi\">Vietnamita<\/option><option value=\"xh\">Xhosa<\/option><option value=\"yo\">Yoruba<\/option><option value=\"zu\">Zulu<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Configurações"
@@ -29,8 +29,14 @@
     "webPageLabel": {
         "message": "Página web"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
-        "message": "Aparecer um botão ao selecionar texto"
+        "message": "Exibir o botão quando um texto for selecionado"
     },
     "ifShowButtonCaptionLabel": {
         "message": "Exibir o botão de tradução quando um texto for selecionado na página web."
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Tamanho da fonte"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Informação"
     },
diff --git a/simple-translate/_locales/pt_PT/messages.json b/simple-translate/_locales/pt_PT/messages.json
index 0264e4f..d2f5512 100644
--- a/simple-translate/_locales/pt_PT/messages.json
+++ b/simple-translate/_locales/pt_PT/messages.json
@@ -15,7 +15,7 @@
         "message": "Target language"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greek<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Hungarian<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Font size"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/ro_RO/messages.json b/simple-translate/_locales/ro_RO/messages.json
index 27803b4..da6a105 100644
--- a/simple-translate/_locales/ro_RO/messages.json
+++ b/simple-translate/_locales/ro_RO/messages.json
@@ -15,7 +15,7 @@
         "message": "Limba ţintă"
     },
     "langList": {
-        "message": "<option value=\"is\">Islandeză<\/option><option value=\"ga\">Irlandeză<\/option>\n<option value=\"az\">Azerbaijană<\/option><option value=\"af\">Africană<\/option>\n<option value=\"am\">Amharică<\/option><option value=\"ar\">Arabă<\/option>\n<option value=\"sq\">Albaneză<\/option><option value=\"hy\">Armeană<\/option>\n<option value=\"it\">Italiană<\/option><option value=\"yi\">Idiș<\/option>\n<option value=\"ig\">Igbo<\/option><option value=\"id\">Indoneză<\/option>\n<option value=\"cy\">Scoțiană<\/option><option value=\"uk\">Uncraineană<\/option>\nvalue=\"uz\">Uzbecă<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonă<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Olandeză<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalană<\/option><option value=\"gl\">Galiciană<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greacă<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmeră<\/option><option value=\"ku\">Kurdă<\/option><option value=\"hr\">Croată<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsică<\/option><option value=\"sm\">Samoană<\/option><option value=\"jv\">Javaneză<\/option><option value=\"ka\">Georgiană<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Singaleză<\/option><option value=\"sv\">Suedeză<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Gaelică scoțiană<\/option><option value=\"es\">Spaniolă<\/option><option value=\"sk\">Slovacă<\/option><option value=\"sl\">Slovenă<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundaneză<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Sârbă<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somaleză<\/option><option value=\"th\">Tailandeză<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Cehă<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Daneză<\/option><option value=\"de\">Germană<\/option><option value=\"tr\">Turcă<\/option><option value=\"ne\">Nepaleză<\/option><option value=\"no\">Norvegiană<\/option><option value=\"ht\">Haitiană<\/option><option value=\"ha\">Hausă<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Bască<\/option><option value=\"haw\">Hawaiiană<\/option><option value=\"hu\">Maghiară<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindusă<\/option><option value=\"fi\">Finlandeză<\/option><option value=\"fr\">Frenceză<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgară<\/option><option value=\"vi\">Vietnameză<\/option><option value=\"he\">Ebraică<\/option><option value=\"be\">Belarusă<\/option><option value=\"fa\">Persană<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Poloneză<\/option><option value=\"bs\">Bosniacă<\/option><option value=\"pt\">Portugheză<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedoneană<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malageză<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Malteză<\/option><option value=\"ms\">Malaieză<\/option><option value=\"my\">Birmană<\/option><option value=\"mn\">Mongolă<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Lao<\/option><option value=\"la\">Latină<\/option><option value=\"lv\">Letonă<\/option><option value=\"lt\">Lituaniană<\/option><option value=\"ro\">Română<\/option><option value=\"lb\">Luxemburegheză<\/option><option value=\"ru\">Rusă<\/option><option value=\"en\">Engleză<\/option><option value=\"ko\">Koreană<\/option><option value=\"zh-CN\">Chineză (PRC)<\/option><option value=\"zh-TW\">Chineză (Taiwan)<\/option><option value=\"ja\">Japoneză<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Dimensiune font"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/ru_RU/messages.json b/simple-translate/_locales/ru_RU/messages.json
index 931906a..3daec2d 100644
--- a/simple-translate/_locales/ru_RU/messages.json
+++ b/simple-translate/_locales/ru_RU/messages.json
@@ -15,112 +15,121 @@
         "message": "Язык перевода"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greek<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Hungarian<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
-        "message": "Settings"
+        "message": "Настройки"
     },
     "generalLabel": {
-        "message": "General"
+        "message": "Общие"
     },
     "targetLangCaptionLabel": {
-        "message": "Select the default target language."
+        "message": "Выберите язык перевода по умолчанию."
     },
     "webPageLabel": {
-        "message": "Web page"
+        "message": "Веб-страница"
+    },
+    "ifShowCandidateLabel": {
+        "message": "Показывать варианты перевода"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Показывать несколько вариантов перевода при выделении одного слова."
     },
     "ifShowButtonLabel": {
-        "message": "Display the button when text is selected"
+        "message": "Показывать кнопку при выделении текста"
     },
     "ifShowButtonCaptionLabel": {
-        "message": "Display the translation button when text is selected on the web page."
+        "message": "Показывать всплывающую кнопку перевода при выделении текста на веб-странице."
     },
     "ifCheckLangLabel": {
-        "message": "Do not display the button if translation is not required"
+        "message": "Не показывать кнопку, если перевод не требуется"
     },
     "ifCheckLangCaptionLabel": {
-        "message": "Detects the language of the selected text, and if it is the same as the target language, the button is not displayed."
+        "message": "Если язык выделенного текста совпадает с языком перевода, то кнопка не показывается."
     },
     "ifShowMenuLabel": {
-        "message": "Display the context menu"
+        "message": "Добавить пункты в контекстное меню"
     },
     "ifShowMenuCaptionLabel": {
-        "message": "Add items to the context menu displayed when right clicking on the web page."
+        "message": "Добавить команды перевода в контекстное меню веб-страницы."
     },
     "toolbarLabel": {
-        "message": "Toolbar popup"
+        "message": "Окно на панели инструментов"
     },
     "ifChangeSecondLangLabel": {
-        "message": "Automatically switch to the second language"
+        "message": "Автоматически переключаться на дополнительный язык перевода"
     },
     "ifChangeSecondLangCaptionLabel": {
-        "message": "Detects the language of the input text, and if it is the same as the default target language, translate it into the second language."
+        "message": "Переключаться на дополнительный язык перевода в окне на панели инструментов, если язык исходного текста совпадает с языком перевода по умолчанию."
     },
     "secondTargetLangLabel": {
         "message": "Дополнительный язык перевода"
     },
     "secondTargetLangCaptionLabel": {
-        "message": "Select the second target language."
+        "message": "Выберите дополнительный язык перевода."
     },
     "styleLabel": {
-        "message": "Style"
+        "message": "Стиль"
     },
     "buttonStyleLabel": {
-        "message": "Translation button"
+        "message": "Кнопка перевода"
     },
     "buttonStyleCaptionLabel": {
-        "message": "Specify the style of the translation button displayed on the web page."
+        "message": "Настройте стиль кнопки перевода, показываемой на веб-странице."
     },
     "buttonSizeLabel": {
-        "message": "Size"
+        "message": "Размер"
     },
     "buttonPositionLabel": {
-        "message": "Display position"
+        "message": "Положение"
     },
     "rightUpLabel": {
-        "message": "Top right"
+        "message": "Вверху справа"
     },
     "rightDownLabel": {
         "message": "Внизу справа"
     },
     "leftUpLabel": {
-        "message": "Top left"
+        "message": "Вверху слева"
     },
     "leftDownLabel": {
-        "message": "Bottom left"
+        "message": "Внизу слева"
     },
     "panelStyleLabel": {
-        "message": "Translation panel"
+        "message": "Панель с переводом"
     },
     "panelStyleCaptionLabel": {
-        "message": "Specify the style of the translation panel displayed on the web page."
+        "message": "Настройте стиль панели с переводом, показываемой на веб-странице."
     },
     "widthLabel": {
-        "message": "Width"
+        "message": "Ширина"
     },
     "heightLabel": {
-        "message": "Height"
+        "message": "Высота"
     },
     "fontSizeLabel": {
         "message": "Размер шрифта"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
-        "message": "Information"
+        "message": "Информация"
     },
     "licenseLabel": {
-        "message": "License"
+        "message": "Лицензия"
     },
     "donationLabel": {
-        "message": "Please make a donation"
+        "message": "Пожалуйста внесите пожертвование"
     },
     "donationCaptionLabel": {
-        "message": "Thank you for using Simple Translate.<br>Your support will be a big encouragement, as I continue to develop the add-on.<br>If you like Simple Translate, I would be pleased if you could consider donating."
+        "message": "Спасибо за использование Simple Translate.<br>Ваша поддержка это большая помощь в дальнейшем развитии расширения.<br>Если вам нравится Simple Translate, пожалуйста, подумайте о внесении небольшого пожертвования."
     },
     "addonPageLabel": {
-        "message": "Add-on page"
+        "message": "Страница расширения"
     },
     "addonUrl": {
-        "message": "https:\/\/addons.mozilla.org\/en-US\/firefox\/addon\/simple-translate\/?src=optionpage"
+        "message": "https:\/\/addons.mozilla.org\/ru-RU\/firefox\/addon\/simple-translate\/?src=optionpage"
     },
     "translatePageMenu": {
         "message": "Перевести всю страницу"
diff --git a/simple-translate/_locales/sr_SP/messages.json b/simple-translate/_locales/sr_SP/messages.json
index 0264e4f..d2f5512 100644
--- a/simple-translate/_locales/sr_SP/messages.json
+++ b/simple-translate/_locales/sr_SP/messages.json
@@ -15,7 +15,7 @@
         "message": "Target language"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greek<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Hungarian<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Font size"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/sv_SE/messages.json b/simple-translate/_locales/sv_SE/messages.json
index 0264e4f..d2f5512 100644
--- a/simple-translate/_locales/sv_SE/messages.json
+++ b/simple-translate/_locales/sv_SE/messages.json
@@ -15,7 +15,7 @@
         "message": "Target language"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greek<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Hungarian<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Font size"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/tr_TR/messages.json b/simple-translate/_locales/tr_TR/messages.json
index f008148..4277baf 100644
--- a/simple-translate/_locales/tr_TR/messages.json
+++ b/simple-translate/_locales/tr_TR/messages.json
@@ -15,109 +15,118 @@
         "message": "Hedef dil"
     },
     "langList": {
-        "message": "<option value=\"is\"> İzlanda<\/option> <option value=\"ga\"> İrlandalı<\/option> <option value=\"az\"> Azerbaycan<\/option> <option value=\"af\"> Afrikaans<\/option> <option value=\"am\"> Amharca<\/option> <option value=\"ar\"> Arapça<\/option> <option value=\"sq\"> Arnavut<\/option> <option value=\"hy\"> Ermeni<\/option> <option value=\"it\"> İtalyan<\/option> <option value=\"yi\"> Yidiş<\/option> <option value=\"ig\"> İbo dili<\/option> <option value=\"id\"> Endonezya<\/option> <option value=\"cy\"> Galce<\/option> <option value=\"uk\"> Ukrayna dili<\/option> <option value=\"uz\"> Özbek<\/option> <option value=\"your\"> Urduca<\/option> <option value=\"et\"> Estonya<\/option> <option value=\"eo\"> Esperanto<\/option> <option value=\"nl\"> Hollanda<\/option> <option value=\"kk\"> kazak<\/option> <option value=\"ca\"> Katalanca<\/option> <option value=\"gl\"> Galiçyaca<\/option> <option value=\"kn\"> Kannada dili<\/option> <option value=\"el\"> Yunanca<\/option> <option value=\"ky\"> Kırgız<\/option> <option value=\"gu\"> Gucerat dili<\/option> <option value=\"km\"> Khmer<\/option> <option value=\"ku\"> Kürt<\/option> <option value=\"hr\"> Hırvat<\/option> <option value=\"xh\"> Xosa<\/option> <option value=\"co\"> Korsika lehçesi<\/option> <option value=\"sm\"> Samoalı<\/option> <option value=\"jv\"> Cava<\/option> <option value=\"ka\"> Gürcüce<\/option> <option value=\"sn\"> Shona<\/option> <option value=\"sd\"> Sindhi dili<\/option> <option value=\"si\"> Sinhala<\/option> <option value=\"sv\"> İsveç<\/option> <option value=\"zu\"> Zulu<\/option> <option value=\"gd\"> Kırım Tatarca<\/option> <option value=\"es\"> İspanyolca<\/option> <option value=\"sk\"> Slovakça<\/option> <option value=\"sl\"> Slovence<\/option> <option value=\"sw\"> Swahili<\/option> <option value=\"su\"> Sundanese<\/option> <option value=\"ceb\"> Sebuanca<\/option> <option value=\"sr\"> Sırp<\/option> <option value=\"sx\"> Sotho Dili<\/option> <option value=\"so\"> Somali<\/option> <option value=\"th\"> Tay<\/option> <option value=\"tl\"> \"Tagalog\"<\/option> <option value=\"tg\"> Tajiki<\/option> <option value=\"ta\"> Tamil<\/option> <option value=\"cs\"> Çek<\/option> <option value=\"ny\"> Chewa<\/option> <option value=\"te\"> Telugu dili<\/option> <option value=\"da\"> Danimarka<\/option> <option value=\"de\"> Almanca<\/option> <option value=\"tr\"> Türk<\/option> <option value=\"ne\"> Nepal dili<\/option> <option value=\"no\"> Norveç<\/option> <option value=\"ht\"> Haiti<\/option> <option value=\"ha\"> Hausa dili<\/option> <option value=\"ps\"> Pushto<\/option> <option value=\"eu\"> Bask dili<\/option> <option value=\"haw\"> Hawaii<\/option> <option value=\"hu\"> Macar<\/option> <option value=\"pa\"> Pencap dili<\/option> <option value=\"hi\"> Hintçe<\/option> <option value=\"fi\"> Finlandiya<\/option> <option value=\"fr\"> Fransızca<\/option> <option value=\"fy\"> Frizce<\/option> <option value=\"bg\"> Bulgar<\/option> <option value=\"vi\"> Vietnamca<\/option> <option value=\"he\"> İbranice<\/option> <option value=\"be\"> Belarus<\/option> <option value=\"fa\"> Farsça<\/option> <option value=\"bn\"> Bengalce<\/option> <option value=\"pl\"> Lehçe<\/option> <option value=\"bs\"> Boşnakça<\/option> <option value=\"pt\"> Portekizce<\/option> <option value=\"mi\"> Maori<\/option> <option value=\"mk\"> Makedonya<\/option> <option value=\"mr\"> Marathi dili<\/option> <option value=\"mg\"> Madagaskar<\/option> <option value=\"ml\"> Malayalam dili<\/option> <option value=\"mt\"> Malta<\/option> <option value=\"ms\"> Malay<\/option> <option value=\"my\"> Myanmar<\/option> <option value=\"mn\"> Moğol<\/option> <option value=\"hmn\"> keşiş<\/option> <option value=\"yo\"> Yoruba dili<\/option> <option value=\"lo\"> Laos<\/option> <option value=\"la\"> Latince<\/option> <option value=\"lv\"> Letonya<\/option> <option value=\"lt\"> Litvanya<\/option> <option value=\"ro\"> Romanya<\/option> <option value=\"lb\"> Lüksemburg dili<\/option> <option value=\"ru\"> Rus<\/option> <option value=\"en\"> İngilizce<\/option> <option value=\"ko\"> Kore dili<\/option> <option value=\"zh-CN\"> Çince (ÇHC)<\/option> <option value=\"zh-TW\"> Çince (Tayvan)<\/option> <option value=\"ja\"> Japonca<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
-        "message": "Settings"
+        "message": "Ayarlar"
     },
     "generalLabel": {
-        "message": "General"
+        "message": "Genel"
     },
     "targetLangCaptionLabel": {
-        "message": "Select the default target language."
+        "message": "Varsayılan hedef dilini seçin."
     },
     "webPageLabel": {
-        "message": "Web page"
+        "message": "İnternet sayfası"
+    },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
     },
     "ifShowButtonLabel": {
-        "message": "Display the button when text is selected"
+        "message": "Metin seçiliyken tuşu görüntüle"
     },
     "ifShowButtonCaptionLabel": {
-        "message": "Display the translation button when text is selected on the web page."
+        "message": "Web sayfasında metin seçiliyken çeviri butonunu görüntüle."
     },
     "ifCheckLangLabel": {
-        "message": "Do not display the button if translation is not required"
+        "message": "Çeviri gerekmedikçe tuşu görüntüleme"
     },
     "ifCheckLangCaptionLabel": {
-        "message": "Detects the language of the selected text, and if it is the same as the target language, the button is not displayed."
+        "message": "Seçili metnin dilini algılar ve dil aynı ise tuş görüntülenmez."
     },
     "ifShowMenuLabel": {
-        "message": "Display the context menu"
+        "message": "İçerik menüsünü görüntüle"
     },
     "ifShowMenuCaptionLabel": {
-        "message": "Add items to the context menu displayed when right clicking on the web page."
+        "message": "Web sayfasında sağ tıklandığında öğeleri görüntülenen içerik menüsüne ekle."
     },
     "toolbarLabel": {
-        "message": "Toolbar popup"
+        "message": "Açılır araç çubuğu penceresi"
     },
     "ifChangeSecondLangLabel": {
-        "message": "Automatically switch to the second language"
+        "message": "İkinci dile otomatik geç"
     },
     "ifChangeSecondLangCaptionLabel": {
-        "message": "Detects the language of the input text, and if it is the same as the default target language, translate it into the second language."
+        "message": "Giriş metninin dilini algılar, varsayılan hedef dili ile aynıysa ikinci dile çevirir."
     },
     "secondTargetLangLabel": {
         "message": "İkinci dil"
     },
     "secondTargetLangCaptionLabel": {
-        "message": "Select the second target language."
+        "message": "İkinci hedef dilini seçin."
     },
     "styleLabel": {
-        "message": "Style"
+        "message": "Biçim"
     },
     "buttonStyleLabel": {
-        "message": "Translation button"
+        "message": "Çeviri düğmesi"
     },
     "buttonStyleCaptionLabel": {
-        "message": "Specify the style of the translation button displayed on the web page."
+        "message": "Web sayfasında görüntülenen çeviri düğmesinin biçimini belirleyin."
     },
     "buttonSizeLabel": {
-        "message": "Size"
+        "message": "Boyut"
     },
     "buttonPositionLabel": {
-        "message": "Display position"
+        "message": "Görüntü konumu"
     },
     "rightUpLabel": {
-        "message": "Top right"
+        "message": "Sağ üst"
     },
     "rightDownLabel": {
         "message": "Sağ alt"
     },
     "leftUpLabel": {
-        "message": "Top left"
+        "message": "Sol üst"
     },
     "leftDownLabel": {
-        "message": "Bottom left"
+        "message": "Sol alt"
     },
     "panelStyleLabel": {
-        "message": "Translation panel"
+        "message": "Çeviri paneli"
     },
     "panelStyleCaptionLabel": {
-        "message": "Specify the style of the translation panel displayed on the web page."
+        "message": "Web sayfasında görüntülenen çeviri panelinin biçimini belirleyin."
     },
     "widthLabel": {
-        "message": "Width"
+        "message": "Genişlik"
     },
     "heightLabel": {
-        "message": "Height"
+        "message": "Yükseklik"
     },
     "fontSizeLabel": {
         "message": "Yazı tipi boyutu"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
-        "message": "Information"
+        "message": "Bilgi"
     },
     "licenseLabel": {
-        "message": "License"
+        "message": "Lisans"
     },
     "donationLabel": {
-        "message": "Please make a donation"
+        "message": "Lütfen bağış yapın"
     },
     "donationCaptionLabel": {
-        "message": "Thank you for using Simple Translate.<br>Your support will be a big encouragement, as I continue to develop the add-on.<br>If you like Simple Translate, I would be pleased if you could consider donating."
+        "message": "Simple Translate'i kullandığınız için teşekkür ederiz.<br>Eklentileri geliştirmeye devam ettikçe, destekleriniz bizim için büyük bir teşvik olacaktır.<br> Simpe Translate'i beğendiyseniz, bağış yaparak bizi mutlu edebilirsiniz."
     },
     "addonPageLabel": {
-        "message": "Add-on page"
+        "message": "Ek sayfa"
     },
     "addonUrl": {
         "message": "https:\/\/addons.mozilla.org\/en-US\/firefox\/addon\/simple-translate\/?src=optionpage"
diff --git a/simple-translate/_locales/uk_UA/messages.json b/simple-translate/_locales/uk_UA/messages.json
index 0264e4f..d2f5512 100644
--- a/simple-translate/_locales/uk_UA/messages.json
+++ b/simple-translate/_locales/uk_UA/messages.json
@@ -15,7 +15,7 @@
         "message": "Target language"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greek<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Hungarian<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Font size"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/vi_VN/messages.json b/simple-translate/_locales/vi_VN/messages.json
index 0264e4f..d2f5512 100644
--- a/simple-translate/_locales/vi_VN/messages.json
+++ b/simple-translate/_locales/vi_VN/messages.json
@@ -15,7 +15,7 @@
         "message": "Target language"
     },
     "langList": {
-        "message": "<option value=\"is\">Icelandic<\/option><option value=\"ga\">Irish<\/option><option value=\"az\">Azerbaijani<\/option><option value=\"af\">Afrikaans<\/option><option value=\"am\">Amharic<\/option><option value=\"ar\">Arabic<\/option><option value=\"sq\">Albanian<\/option><option value=\"hy\">Armenian<\/option><option value=\"it\">Italian<\/option><option value=\"yi\">Yiddish<\/option><option value=\"ig\">Igbo<\/option><option value=\"id\">Indonesian<\/option><option value=\"cy\">Welsh<\/option><option value=\"uk\">Ukrainian<\/option><option value=\"uz\">Uzbek<\/option><option value=\"ur\">Urdu<\/option><option value=\"et\">Estonian<\/option><option value=\"eo\">Esperanto<\/option><option value=\"nl\">Dutch<\/option><option value=\"kk\">Kazakh<\/option><option value=\"ca\">Catalan<\/option><option value=\"gl\">Galician<\/option><option value=\"kn\">Kannada<\/option><option value=\"el\">Greek<\/option><option value=\"ky\">Kirghiz<\/option><option value=\"gu\">Gujarati<\/option><option value=\"km\">Khmer<\/option><option value=\"ku\">Kurdish<\/option><option value=\"hr\">Croatian<\/option><option value=\"xh\">Xosa<\/option><option value=\"co\">Corsican<\/option><option value=\"sm\">Samoan<\/option><option value=\"jv\">Javanese<\/option><option value=\"ka\">Georgian<\/option><option value=\"sn\">Shona<\/option><option value=\"sd\">Sindhi<\/option><option value=\"si\">Sinhala<\/option><option value=\"sv\">Swedish<\/option><option value=\"zu\">Zulu<\/option><option value=\"gd\">Scottish Gaelic<\/option><option value=\"es\">Spanish<\/option><option value=\"sk\">Slovak<\/option><option value=\"sl\">Slovenian<\/option><option value=\"sw\">Swahili<\/option><option value=\"su\">Sundanese<\/option><option value=\"ceb\">Cebuano<\/option><option value=\"sr\">Serbian<\/option><option value=\"sx\">Sotho<\/option><option value=\"so\">Somali<\/option><option value=\"th\">Thai<\/option><option value=\"tl\">Tagalog<\/option><option value=\"tg\">Tajiki<\/option><option value=\"ta\">Tamil<\/option><option value=\"cs\">Czech<\/option><option value=\"ny\">Chewa<\/option><option value=\"te\">Telugu<\/option><option value=\"da\">Danish<\/option><option value=\"de\">German<\/option><option value=\"tr\">Turkish<\/option><option value=\"ne\">Nepali<\/option><option value=\"no\">Norwegian<\/option><option value=\"ht\">Haitian<\/option><option value=\"ha\">Hausa<\/option><option value=\"ps\">Pushto<\/option><option value=\"eu\">Basque<\/option><option value=\"haw\">Hawaiian<\/option><option value=\"hu\">Hungarian<\/option><option value=\"pa\">Punjabi<\/option><option value=\"hi\">Hindi<\/option><option value=\"fi\">Finnish<\/option><option value=\"fr\">French<\/option><option value=\"fy\">Frisian<\/option><option value=\"bg\">Bulgarian<\/option><option value=\"vi\">Vietnamese<\/option><option value=\"he\">Hebrew<\/option><option value=\"be\">Belarusian<\/option><option value=\"fa\">Persian<\/option><option value=\"bn\">Bengali<\/option><option value=\"pl\">Polish<\/option><option value=\"bs\">Bosnian<\/option><option value=\"pt\">Portuguese<\/option><option value=\"mi\">Maori<\/option><option value=\"mk\">Macedonian<\/option><option value=\"mr\">Marathi<\/option><option value=\"mg\">Malagasy<\/option><option value=\"ml\">Malayalam<\/option><option value=\"mt\">Maltese<\/option><option value=\"ms\">Malay<\/option><option value=\"my\">Myanmar<\/option><option value=\"mn\">Mongolian<\/option><option value=\"hmn\">Monk<\/option><option value=\"yo\">Yoruba<\/option><option value=\"lo\">Laotian<\/option><option value=\"la\">Latin<\/option><option value=\"lv\">Latvian<\/option><option value=\"lt\">Lithuanian<\/option><option value=\"ro\">Romanian<\/option><option value=\"lb\">Luxembourgish<\/option><option value=\"ru\">Russian<\/option><option value=\"en\">English<\/option><option value=\"ko\">Korean<\/option><option value=\"zh-CN\">Chinese (PRC)<\/option><option value=\"zh-TW\">Chinese (Taiwan)<\/option><option value=\"ja\">Japanese<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "Font size"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/zh_CN/messages.json b/simple-translate/_locales/zh_CN/messages.json
index 618c7a0..bf0cdd3 100644
--- a/simple-translate/_locales/zh_CN/messages.json
+++ b/simple-translate/_locales/zh_CN/messages.json
@@ -15,7 +15,7 @@
         "message": "目标语言"
     },
     "langList": {
-        "message": "<option value=\"is\">冰岛语<\/option><option value=\"ga\">爱尔兰语<\/option><option value=\"az\">阿塞拜疆<\/option><option value=\"af\">南非荷兰语<\/option><option value=\"am\">阿姆哈拉语<\/option><option value=\"ar\">阿拉伯语<\/option><option value=\"sq\">阿尔巴尼亚语<\/option ><option value=\"hy\">亚美尼亚语<\/option><option value=\"it\">意大利语<\/option><option value=\"yi\">意第绪语<\/option><option value=\" ig\">伊博语<\/option><option value=\"id\">印度尼西亚语<\/option><option value=\"cy\">威尔士语<\/option><option value=\"uk\">乌克兰语<\/ option><option value=\"uz\">乌兹别克语<\/option><option value=\"ur\">乌尔都语<\/option><option value=\"et\">爱沙尼亚语<\/option><option value= \"eo\">世界语<\/option><option value=\"nl\">荷兰语<\/option><option value=\"kk\">哈萨克语<\/option><option value=\"ca\">加泰罗尼亚语<\/option><option value=\"gl\">加利西亚语<\/option><option value=\"kn\">卡纳达语<\/option><option value=\"el\">希腊语<\/option ><option value= \"ky\">柯尔克孜语<\/option><option value=\"gu\">古吉拉特语<\/option><option value=\"km\">高棉语<\/option><option value=\"ku\">库尔德语<\/ option><option value=\"hr\">克罗地亚语<\/option><option value=\"xh\">科萨语<\/option><option value=\"co\">科西嘉语<\/option ><option value =\"sm\">萨摩亚语<\/option><option value=\"jv\">爪哇语<\/option><option value=\"ka\">格鲁吉亚<\/option><option value=\"sn\" >绍纳语<\/option><option value=\"sd\">信德语<\/option><option value=\"si\">僧伽罗语<\/option><option value=\"sv\">瑞典语<\/ option><option value =\"zu\">祖鲁语<\/option><option value=\"gd\">苏格兰盖尔语<\/option><option value=\"es\">西班牙语<\/option><option value =\"sk\">斯洛伐克语<\/option><option value=\"sl\">斯洛文尼亚语<\/option><option value=\"sw\">斯瓦希里语<\/option><option value=\"su\">巽他语<\/ option><option value=\"ceb\">宿务语<\/option><option value=\"sr\">塞尔维亚语<\/option><option value=\"sx\">塞索托语<\/ option><option value =\"so\">索马里语<\/option><opti on value=\" th\">泰语<\/option><option value=\"tl\">他加禄语<\/option><option value=\"tg\">塔吉克语<\/option><option value=\"ta\">泰米尔语< \/option><option value=\"cs\">捷克语<\/option><option value=\"ny\">齐切瓦语<\/option><option value=\"te\">泰卢固语< \/option>< option value=\"da\">丹麦语<\/option><option value=\"de\">德语<\/option><option value=\"tr\">土耳其语<\/option><option value=\"ne \">尼泊尔语<\/option><option value=\"no\">挪威语<\/option><option value=\"ht\">海地语<\/option><option value=\"ha\">豪萨语<\/option ><option value =\"ps\">普什图语<\/option><option value=\"eu\">巴斯克语<\/option><option value=\"haw\">夏威夷语<\/option><option value= \"hu\">匈牙利语<\/option><option value=\"pa\">旁遮普语<\/option><option value=\"hi\">印地语<\/option><option value=\"fi\">芬兰语< \/option>< option value=\"fr\">法语<\/option><option value=\"fy\">弗里斯兰语<\/option><option value=\"bg\">保加利亚语<\/option><option value= \"vi\">越南语<\/option><option value=\"he\">希伯来语<\/op tion><option va lue=\"be\">白俄罗斯语<\/option><option value=\"fa\">波斯语<\/option><option value=\"bn\">孟加拉语<\/option><option value=\" pl\">波兰语<\/option><option value=\"bs\">波斯尼亚语<\/option><option value=\"pt\">葡萄牙语<\/option><option value=\"mi\">毛利语<\/option ><option value= \"mk\">马其顿语<\/option><option value=\"mr\">马拉语<\/option><option value=\"mg\">马尔加什语<\/option><option value= \"ml\">马拉雅拉姆语<\/option><option value=\"mt\">马耳他语<\/option><option value=\"ms\">马来语<\/option><option value=\"my\" >缅甸语<\/ option><option value=\"mn\">蒙古语<\/option><option value=\"hmn\">Monk语<\/option><option value=\"yo\">约鲁巴语<\/option ><option value= \"lo\">老挝语<\/option><option value=\"la\">拉丁语<\/option><option value=\"lv\">拉脱维亚语<\/option><option value=\"lt\" >立陶宛语<\/ option><option value=\"ro\">罗马尼亚语<\/option><option value=\"lb\">卢森堡语<\/option><option value=\"ru\">俄语<\/option><option value=\"en\" >英语<\/option><option val ue=\"ko\">韩语<\/option><option value=\"zh-CN\">中文简体(PRC)<\/option><option value=\"zh-TW\">中文繁体<\/option><option value= \"ja\">日本语<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "Settings"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "Web page"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "字体大小"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "Information"
     },
diff --git a/simple-translate/_locales/zh_TW/messages.json b/simple-translate/_locales/zh_TW/messages.json
index a3259e8..95c4794 100644
--- a/simple-translate/_locales/zh_TW/messages.json
+++ b/simple-translate/_locales/zh_TW/messages.json
@@ -15,7 +15,7 @@
         "message": "目標語言"
     },
     "langList": {
-        "message": "<option value=\"is\">冰島語<\/option><option value=\"ga\">愛爾蘭語<\/option><option value=\"az\">阿塞拜疆<\/option><option value=\"af\">南非荷蘭語<\/option><option value=\"am\">阿姆哈拉語<\/option><option value=\"ar\">阿拉伯語<\/option><option value=\"sq\">阿爾巴尼亞語<\/option><option value=\"hy\">亞美尼亞語<\/option><option value=\"it\">意大利語<\/option><option value=\"yi\">意第緒語<\/option><option value=\"ig\">伊博語<\/option><option value=\"id\">印度尼西亞語<\/option><option value=\"cy\">威爾士語<\/option><option value=\"uk\">烏克蘭語<\/option><option value=\"uz\">烏茲別克語<\/option><option value=\"ur\">烏爾都語<\/option><option value=\"et\">愛沙尼亞語<\/option><option value=\"eo\">世界語<\/option><option value=\"nl\">荷蘭語<\/option><option value=\"kk\">哈薩克語<\/option><option value=\"ca\">加泰羅尼亞語<\/option><option value=\"gl\">加利西亞語<\/option><option value=\"kn\">卡納達語<\/option><option value=\"el\">希臘語<\/option><option value=\"ky\">柯爾克孜語<\/option><option value=\"gu\">古吉拉特語<\/option><option value=\"km\">高棉語<\/option><option value=\"ku\">庫爾德語<\/option><option value=\"hr\">克羅地亞語<\/option><option value=\"xh\">科薩語<\/option><option value=\"co\">科西嘉語<\/option><option value=\"sm\">薩摩亞語<\/option><option value=\"jv\">爪哇語<\/option><option value=\"ka\">格魯吉亞<\/option><option value=\"sn\">紹納語<\/option><option value=\"sd\">信德語<\/option><option value=\"si\">僧伽羅語<\/option><option value=\"sv\">瑞典語<\/option><option value=\"zu\">祖魯語<\/option><option value=\"gd\">蘇格蘭蓋爾語<\/option><option value=\"es\">西班牙語<\/option><option value=\"sk\">斯洛伐克語<\/option><option value=\"sl\">斯洛文尼亞語<\/option><option value=\"sw\">斯瓦希裡語<\/option><option value=\"su\">巽他語<\/option><option value=\"ceb\">宿務語<\/option><option value=\"sr\">塞爾維亞語<\/option><option value=\"sx\">塞索托語<\/option><option value=\"so\">索馬里語<\/option><option value=\"th\">泰語<\/option><option value=\"tl\">他加祿語<\/option><option value=\"tg\">塔吉克語<\/option><option value=\"ta\">泰米爾語<\/option><option value=\"cs\">捷克語<\/option><option value=\"ny\">齊切瓦語<\/option><option value=\"te\">泰盧固語<\/option><option value=\"da\">丹麥語<\/option><option value=\"de\">德語<\/option><option value=\"tr\">土耳其語<\/option><option value=\"ne\">尼泊爾語<\/option><option value=\"no\">挪威語<\/option><option value=\"ht\">海地語<\/option><option value=\"ha\">豪薩語<\/option><option value=\"ps\">普什圖語<\/option><option value=\"eu\">巴斯克語<\/option><option value=\"haw\">夏威夷語<\/option><option value=\"hu\">匈牙利語<\/option><option value=\"pa\">旁遮普語<\/option><option value=\"hi\">印地語<\/option><option value=\"fi\">芬蘭語<\/option><option value=\"fr\">法語<\/option><option value=\"fy\">弗里斯蘭語<\/option><option value=\"bg\">保加利亞語<\/option><option value=\"vi\">越南語<\/option><option value=\"he\">希伯來語<\/option><option value=\"be\">白俄羅斯語<\/option><option value=\"fa\">波斯語<\/option><option value=\"bn\">孟加拉語<\/option><option value=\"pl\">波蘭語<\/option><option value=\"bs\">波斯尼亞語<\/option><option value=\"pt\">葡萄牙語<\/option><option value=\"mi\">毛利語<\/option><option value=\"mk\">馬其頓語<\/option><option value=\"mr\">馬拉語<\/option><option value=\"mg\">馬爾加什語<\/option><option value=\"ml\">馬拉雅拉姆語<\/option><option value=\"mt\">馬耳他語<\/option><option value=\"ms\">馬來語<\/option><option value=\"my\">緬甸語<\/option><option value=\"mn\">蒙古語<\/option><option value=\"hmn\">Monk語<\/option><option value=\"yo\">約魯巴語<\/option><option value=\"lo\">老撾語<\/option><option value=\"la\">拉丁語<\/option><option value=\"lv\">拉脫維亞語<\/option><option value=\"lt\">立陶宛語<\/option><option value=\"ro\">羅馬尼亞語<\/option><option value=\"lb\">盧森堡語<\/option><option value=\"ru\">俄語<\/option><option value=\"en\">英語<\/option><option value=\"ko\">韩語<\/option><option value=\"zh-CN\">中文(簡體) <\/option><option value=\"zh-TW\">中文(繁體)<\/option><option value=\"ja\">日本語<\/option>"
+        "message": "af:Afrikaans, sq:Albanian, am:Amharic, ar:Arabic, hy:Armenian, az:Azerbaijani, eu:Basque, be:Belarusian, bn:Bengali, bs:Bosnian, bg:Bulgarian, ca:Catalan, ceb:Cebuano, ny:Chewa, zh-CN:Chinese (PRC), zh-TW:Chinese (Taiwan), co:Corsican, hr:Croatian, cs:Czech, da:Danish, nl:Dutch, en:English, eo:Esperanto, et:Estonian, fi:Finnish, fr:French, fy:Frisian, gl:Galician, ka:Georgian, de:German, el:Greek, gu:Gujarati, ht:Haitian, ha:Hausa, haw:Hawaiian, he:Hebrew, hi:Hindi, hu:Hungarian, is:Icelandic, ig:Igbo, id:Indonesian, ga:Irish, it:Italian, ja:Japanese, jv:Javanese, kn:Kannada, kk:Kazakh, km:Khmer, ky:Kirghiz, ko:Korean, ku:Kurdish, lo:Laotian, la:Latin, lv:Latvian, lt:Lithuanian, lb:Luxembourgish, mk:Macedonian, mg:Malagasy, ms:Malay, ml:Malayalam, mt:Maltese, mi:Maori, mr:Marathi, mn:Mongolian, hmn:Monk, my:Myanmar, ne:Nepali, no:Norwegian, fa:Persian, pl:Polish, pt:Portuguese, pa:Punjabi, ps:Pushto, ro:Romanian, ru:Russian, sm:Samoan, gd:Scottish Gaelic, sr:Serbian, sn:Shona, sd:Sindhi, si:Sinhala, sk:Slovak, sl:Slovenian, so:Somali, sx:Sotho, es:Spanish, su:Sundanese, sw:Swahili, sv:Swedish, tl:Tagalog, tg:Tajiki, ta:Tamil, te:Telugu, th:Thai, tr:Turkish, uk:Ukrainian, ur:Urdu, uz:Uzbek, vi:Vietnamese, cy:Welsh, xh:Xosa, yi:Yiddish, yo:Yoruba, zu:Zulu"
     },
     "settingsLabel": {
         "message": "設定"
@@ -29,6 +29,12 @@
     "webPageLabel": {
         "message": "網頁"
     },
+    "ifShowCandidateLabel": {
+        "message": "Show translation candidates"
+    },
+    "ifShowCandidateCaptionLabel": {
+        "message": "Show multiple translation candidates when a single word is translated."
+    },
     "ifShowButtonLabel": {
         "message": "選取文字時顯示按鈕"
     },
@@ -36,10 +42,10 @@
         "message": "在網頁上選取文字時顯示翻譯按鈕。"
     },
     "ifCheckLangLabel": {
-        "message": "如果不需翻譯時, 請不要顯示該按鈕"
+        "message": "如果不需翻譯時, 不要顯示按鈕"
     },
     "ifCheckLangCaptionLabel": {
-        "message": "偵測所選文字的語言, 如果它與目標語言相同, 則不顯示該按鈕。"
+        "message": "偵測所選文字的語言, 如果它與目標語言相同, 則不顯示按鈕。"
     },
     "ifShowMenuLabel": {
         "message": "於右鍵選單中顯示"
@@ -104,6 +110,9 @@
     "fontSizeLabel": {
         "message": "字型大小"
     },
+    "bgColorLabel": {
+        "message": "Background color"
+    },
     "informationLabel": {
         "message": "附加元件資訊"
     },