Examine source code of HideIPVPN: VPN & Proxy service

{
  "manifest_version": 3,
  "name": "HideIPVPN - VPN and Smart DNS services",
  "description": "Hide your IP address and bypass blocks and restrictions",
  "version": "2.0.0",
  "homepage_url": "https://www.hideipvpn.com",
  "browser_specific_settings": {
    "gecko": {
      "id": "{37da92c3-8dfe-4757-a98c-744ad3beb3e5}",
      "strict_min_version": "115.0"
    }
  },
  "action": {
    "default_icon": "icons/icon19.png",
    "default_popup": "src/browser_action/browser_action.html",
    "default_title": "HideIPVPN"
  },
  "background": {
    "scripts": [
      "src/bg/background.js"
    ]
  },
  "icons": {
    "19": "icons/icon19.png",
    "128": "icons/icon128.png"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self';"
  },
  "permissions": [
    "proxy",
    "storage",
    "webRequest",
    "webRequestBlocking",
    "notifications",
    "privacy"
  ],
  "host_permissions": [
    "<all_urls>"
  ]
}