{
    "name": "",
    "short_name": "",
   "icons": [
    {
      "src": "favicon.ico",
      "sizes": "64x64 32x32 24x24 16x16",
      "type": "image/x-icon"
    }
  ]
    "theme_color": "#ffffff",
    "background_color": "#ffffff",
    "display": "standalone"
}