Examine source code of Environment Indicator

{
  "manifest_version": 3,
  "name": "__MSG_appName__",
  "version": "1.4.0",
  "description": "__MSG_appDescription__",
  "default_locale": "fr",
  "permissions": [
    "storage"
  ],
  "options_page": "options.html",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "styles/banner.css"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "antho4d@gmail.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  }
}