Examine source code of WeVPN

{
  "manifest_version": 2,
  "name": "WeVPN: Fast & Secure VPN Proxy",
  "short_name": "WeVpn",
  "description": "Defeat censorship, unblock any website and access the open Internet the way it was meant to be with WeVPN®",
  "version": "2.11.1",
  "icons": {
    "48": "/images/logo_48.png",
    "128": "/images/logo_128.png",
    "256": "/images/logo_256.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "91.1.0",
      "id": "{e8da52df-a899-448b-a67b-b0054aa68f70}"
    }
  },
  "browser_action": {
    "default_icon": {
      "16": "/images/icons/grey_16.png",
      "24": "/images/icons/grey_32.png",
      "32": "/images/icons/grey_48.png"
    },
    "default_popup": "/pages/popup/index.html"
  },
  "background": {
    "scripts": [
      "/lib/moment.min.js",
      "/lib/jquery.min.js",
      "/lib/webx.js",
      "/js/api_manager.js",
      "/lib/uuid.min.js",
      "/js/background.js"
    ],
    "persistent": true
  },
  "permissions": [
    "tabs",
    "proxy",
    "management",
    "privacy",
    "webRequest",
    "webRequestBlocking",
    "storage",
    "unlimitedStorage",
    "browsingData",
    "cookies",
    "<all_urls>"
  ],
  "web_accessible_resources": [
    "/*"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "content_scripts": [
    {
      "run_at": "document_end",
      "all_frames": true,
      "match_about_blank": false,
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "/js/location_block.js",
        "/js/contentscript.js",
        "/js/banner_block.js"
      ]
    }
  ]
}