Examine source code of Hero Wars Guide

{
  "manifest_version": 2,
  "name": "__MSG_appName__",
  "description": "__MSG_appDesc__",
  "version": "1.10.2",
  "default_locale": "en",
  "homepage_url": "https://dg-guide.com",
  "icons": {
    "16": "icons/dg-01.png",
    "48": "icons/dg-02.png",
    "128": "icons/dg-03.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/dg-01.png",
      "48": "icons/dg-02.png",
      "128": "icons/dg-03.png"
    },
    "default_title": "__MSG_appName__"
  },
  "permissions": [
    "activeTab",
    "unlimitedStorage",
    "webRequest",
    "webRequestBlocking",
    "*://*.dg-guide.com/*",
    "*://*.nextersglobal.com/*",
    "*://*.hero-wars.com/*"
  ],
  "background": {
    "scripts": [
      "app/preset.js",
      "background/storage.js",
      "background/filter.js",
      "background/background.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.dg-guide.com/*"
      ],
      "run_at": "document_start",
      "js": [
        "app/preset.js",
        "background/homepage.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "icons/*.jpg",
    "app/index.html"
  ],
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "58.0",
      "id": "{b51cfeae-8e7e-4648-93d5-7fa8f2d95580}"
    }
  }
}