Examine source code of Add to DGB

{
  "name": "Add to DGB",
  "description": "“Add to DGB”是能够让您在日本购物网站享受一键购物的应用程序。",
  "manifest_version": 2,
  "version": "1.1.2",
  "browser_action": {
    "browser_style": true,
    "default_title": "加入代购帮购物车",
    "default_icon": "icon/DGB_128x128.png",
    "default_popup": "main.html"
  },
  "permissions": [
    "http://*/",
    "https://*/",
    "*://*.daigobang.cn/",
    "tabs",
    "storage",
    "notifications"
  ],
  "icons": {
    "16": "icon/DGB_16x16.png",
    "19": "icon/DGB_19x19.png",
    "32": "icon/DGB_32x32.png",
    "38": "icon/DGB_38x38.png",
    "48": "icon/DGB_48x48.png",
    "64": "icon/DGB_64x64.png",
    "128": "icon/DGB_128x128.png"
  },
  "homepage_url": "https://www.daigobang.cn/"
}