Examine source code of iTop VPN Free

{
  "manifest_version": 2,
  "name": "__MSG_extName__",
  "description": "__MSG_extDescription__",
  "version": "1.0.6663",
  "icons": {
    "16": "icon/app_icon_off.png",
    "24": "icon/24.png",
    "32": "icon/32.png",
    "64": "icon/64.png",
    "128": "icon/128.png"
  },
  "default_locale": "en",
  "minimum_chrome_version": "116",
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "115.0",
      "id": "{0ec0f8ae-2296-4b09-96f0-ba04c0b66c4d}"
    }
  },
  "web_accessible_resources": [
    "popup/**/*.html"
  ],
  "permissions": [
    "activeTab",
    "storage",
    "nativeMessaging",
    "unlimitedStorage",
    "alarms",
    "https://s3.amazonaws.com/*",
    "https://www.itopvpn.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "iTop VPN\nNot Connect",
    "default_popup": "main.html"
  }
}