Examine source code of WhatRuns Pro

{
  "background": {
    "scripts": [
      "./js/background.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "16": "images/icon_16.png",
      "32": "images/icon_32.png"
    },
    "default_title": "WhatRuns - click for more details"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "js/jquery-3.2.1.min.js"
      ],
      "run_at": "document_start"
    },
    {
      "js": [
        "js/browser-polyfill.js",
        "js/content.js",
        "js/notification.js",
        "js/ig_connect.js",
        "js/data_sdk.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "run_at": "document_idle"
    }
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "default_locale": "en",
  "description": "Discover what runs a website. Frameworks, Analytics Tools, Wordpress Plugins, Fonts - you name it.",
  "homepage_url": "https://www.whatruns.com/?source=plugin",
  "icons": {
    "16": "images/icon_16.png",
    "32": "images/icon_32.png",
    "120": "images/icon_120.png"
  },
  "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAgtvxDk6T8Dtsev40P+eLZr4DXhXA8q/w6Lq/FkSyKhh6IPf3dsY4v17QmOy5CX8lrqVDP0B2iPqJbEmkXw/4c3jj1nqXcQITkM5uTUz4GxU+4YONC687rHsDzDd0adt33RpENkwjjmRKJeEA9/6j+ohJS6eXb6sO9Om3EtbjqOi909TlNaKdJ5BRIyF800uGxgZrgLTNho/Tdvent/T3yCVXLq9tyRyVqLBnj0QDLlWbLw7Q1q0n48r0yow3MSZ8SY2d49+M5UPxfYm3Ozc56oa0fATX4sw10EYkcIfZVX5eXTejaLo+APma8cfFGXPXfMfLrh4S/0r4PUfbUK9x1wIDAQAB",
  "manifest_version": 2,
  "name": "WhatRuns",
  "permissions": [
    "tabs",
    "activeTab",
    "webRequest",
    "storage"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "version": "1.8.3",
  "web_accessible_resources": [
    "popup.html",
    "css/*",
    "images/*",
    "js/wrs_env.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{beccffb4-4638-4bbd-8e28-359f615ebfa3}"
    }
  }
}