Examine source code of GitHub Notifier Pro

{
  "manifest_version": 3,
  "name": "GitHub Notifier Pro",
  "version": "1.4.1",
  "description": "GitHub notifications in the browser toolbar",
  "permissions": [
    "alarms",
    "storage",
    "notifications"
  ],
  "host_permissions": [
    "https://api.github.com/*",
    "https://github.com/*",
    "https://avatars.githubusercontent.com/*"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "background": {
    "scripts": [
      "src/background/service-worker.js"
    ],
    "type": "module"
  },
  "action": {
    "default_popup": "src/popup/popup.html",
    "default_icon": {
      "16": "images/icon.png",
      "48": "images/icon.png",
      "128": "images/icon.png"
    },
    "default_title": "GitHub Notifier Pro"
  },
  "icons": {
    "16": "images/icon.png",
    "48": "images/icon.png",
    "128": "images/icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "github-notifier-pro@euxx.dev",
      "strict_min_version": "112.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}