Examine source code of BravoClick2Call

{
  "manifest_version": 3,
  "name": "BravoClick2Call",
  "description": "Make a call to the selected phone number",
  "version": "1.1",
  "author": "DigitalPlatforms SpA",
  "browser_specific_settings": {
    "gecko": {
      "id": "bravoclick2call@dplatforms.it",
      "strict_min_version": "122.0"
    }
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self';"
  },
  "permissions": [
    "storage",
    "menus",
    "activeTab",
    "notifications"
  ],
  "background": {
    "page": "background/background.html"
  },
  "options_ui": {
    "page": "/config/options.html",
    "browser_style": false
  },
  "icons": {
    "16": "images/Bravo16.png",
    "32": "images/Bravo32.png",
    "48": "images/Bravo48.png",
    "128": "images/Bravo128.png"
  }
}