Examine source code of Urban Shield VPN

{
  "name": "__MSG_name__",
  "short_name": "__MSG_short_name__",
  "author": "Urban Nest Company Ltd.",
  "version": "1.0.2",
  "default_locale": "en",
  "description": "__MSG_description__",
  "icons": {
    "16": "assets/images/icons/enabled-16.png",
    "128": "assets/images/icons/enabled-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://my.urbanshieldvpn.com/sso*",
        "https://dev.urbanshieldvpn.com/sso*"
      ],
      "js": [
        "auth.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "custom-dns-links.js"
      ],
      "run_at": "document_start"
    }
  ],
  "permissions": [
    "alarms",
    "contextMenus",
    "management",
    "notifications",
    "privacy",
    "proxy",
    "storage",
    "tabs",
    "unlimitedStorage",
    "webRequest"
  ],
  "manifest_version": 3,
  "action": {
    "default_icon": {
      "19": "assets/images/icons/disabled-19.png",
      "38": "assets/images/icons/disabled-38.png"
    },
    "default_title": "__MSG_name__",
    "default_popup": "popup.html"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "support@urbanshieldvpn.com",
      "strict_min_version": "91.1.0"
    }
  },
  "background": {
    "page": "background.html"
  },
  "host_permissions": [
    "<all_urls>"
  ],
  "protocol_handlers": [
    {
      "protocol": "ext+adguardvpn",
      "name": "Urban Shield VPN Extension",
      "uriTemplate": "/custom-protocol-handler.html#matched=%s"
    }
  ]
}