Examine source code of Text Translator

{
  "manifest_version": 2,
  "name": "Text Translator",
  "version": "1.0",
  "description": "Translate text to different languages.",
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icon.png"
    }
  },
  "permissions": [
    "activeTab",
    "https://libretranslate.com/"
  ],
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fa4db003-fb89-4ac2-99f6-d8c365711ea8}"
    }
  }
}