Examine source code of iHomepage Pro

{
  "name": "__MSG_name__",
  "description": "__MSG_desc__",
  "default_locale": "en",
  "version": "2.1.0",
  "manifest_version": 2,
  "icons": {
    "64": "icon/icon_64.png",
    "128": "icon/icon_128.png",
    "192": "icon/icon_192.png",
    "512": "icon/icon_512.png"
  },
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "host_permissions": [
    "https://www.google.com/",
    "https://www.baidu.com/"
  ],
  "permissions": [
    "activeTab",
    "contextMenus",
    "search"
  ],
  "optional_permissions": [
    "bookmarks",
    "favicon"
  ],
  "background": {
    "scripts": [
      "serviceworker.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icon/icon_64.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d2a966dc-9fde-498f-8414-03f494395c15}"
    }
  }
}