Examine source code of WCAG Radar

{
  "manifest_version": 3,
  "name": "__MSG_extName__",
  "description": "__MSG_extDesc__",
  "default_locale": "en",
  "version": "2.40.1",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_title": "__MSG_actionTitle__",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "permissions": [
    "activeTab",
    "scripting",
    "storage"
  ],
  "host_permissions": [
    "https://testtoegankelijkheid.nl/*",
    "https://wcagtoolkit.com/*"
  ],
  "options_ui": {
    "page": "licentie.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "licentie.js",
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "wcag-radar@properaccess.nl",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [
          "authenticationInfo"
        ]
      }
    }
  }
}