Examine source code of Appify Shortcut

{
  "manifest_version": 2,
  "name": "Appify Shortcut",
  "description": "Appify Shortcut creates streamlined shortcut applications via Applicationize, giving you quick access to your favorite web apps in one click",
  "version": "1.0",
  "icons": {
    "128": "img/icon.png"
  },
  "app": {
    "background": {
      "scripts": [
        "js/background.js"
      ],
      "pages": [
        "html/embed.html"
      ]
    }
  },
  "permissions": [
    "webview",
    "fullscreen"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{25dbbc0b-67f2-4468-a081-ce272e37a270}"
    }
  }
}