Examine source code of Global VPN

{
  "web_accessible_resources": [
    {
      "matches": [
        "<all_urls>"
      ],
      "resources": [
        "img/*"
      ]
    }
  ],
  "declarative_net_request": {
    "rule_resources": [
      {
        "path": "rules.json",
        "enabled": true,
        "id": "ruleset_1"
      }
    ]
  },
  "description": "__MSG_extensionDescription__",
  "default_locale": "en",
  "icons": {
    "16": "img/icon-16.png",
    "48": "img/icon-48.png",
    "128": "img/icon-128.png"
  },
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "img/icon-16.png",
      "48": "img/icon-48.png",
      "128": "img/icon-128.png"
    }
  },
  "version": "2.1.0",
  "manifest_version": 3,
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "all_frames": true,
      "js": [
        "js/library.js",
        "js/rules.js",
        "js/vpn.js"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_specific_settings": {
    "gecko_android": {
      "strict_min_version": "92.0"
    },
    "gecko": {
      "strict_min_version": "113.0",
      "id": "{c880e326-7480-46e2-bb34-18874339a4e3}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "proxy",
    "storage",
    "privacy",
    "declarativeNetRequest",
    "webRequest",
    "webRequestBlocking",
    "alarms"
  ],
  "name": "Global VPN"
}