Examine source code of HWGame

{
  "manifest_version": 2,
  "name": "__MSG_appName__",
  "description": "__MSG_appDesc__",
  "default_locale": "ru",
  "version": "0.3.6",
  "author": "Bigwer",
  "icons": {
    "20": "images/icon_20.png",
    "48": "images/icon_48.png",
    "64": "images/icon_64.png",
    "128": "images/icon_128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://i-heroes-vk.nextersglobal.com/*",
        "https://i-heroes-mm.nextersglobal.com/*",
        "https://i-heroes-mg.nextersglobal.com/*",
        "https://i-heroes-ok.nextersglobal.com/*",
        "https://i-heroes-fb.nextersglobal.com/*",
        "https://hero-wars.com/*"
      ],
      "run_at": "document_start",
      "all_frames": true,
      "js": [
        "contentscript.js"
      ]
    }
  ],
  "background": {
    "persistent": true,
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "unlimitedStorage",
    "storage",
    "webRequest",
    "webRequestBlocking",
    "https://i-heroes-vk.nextersglobal.com/*",
    "https://i-heroes-mm.nextersglobal.com/*",
    "https://i-heroes-mg.nextersglobal.com/*",
    "https://i-heroes-ok.nextersglobal.com/*",
    "https://i-heroes-fb.nextersglobal.com/*",
    "https://hero-wars.com/*",
    "https://heroes-vk.nextersglobal.com/*",
    "https://heroes-mm.nextersglobal.com/*",
    "https://heroes-mg.nextersglobal.com/*",
    "https://heroes-ok.nextersglobal.com/*",
    "https://heroes-fb.nextersglobal.com/*",
    "https://heroes-wb.nextersglobal.com/*",
    "https://heroes.cdnvideo.ru/*",
    "https://vk.com/bestmoba",
    "https://my.mail.ru/apps/746862",
    "https://games.mail.ru/app/3550",
    "https://ok.ru/game/moba",
    "https://apps.facebook.com/mobaheroes/",
    "https://hwgame.top/*",
    "https://static.hwgame.top/*"
  ],
  "web_accessible_resources": [
    "injected.js",
    "panel.js"
  ],
  "browser_action": {
    "default_title": "HWGame",
    "default_icon": "images/icon_48.png",
    "default_popup": "panel.html"
  }
}