{
    "icons": [{
          "src": "android-app-icon-192x192.png",
          "type": "image/png",
          "sizes": "192x192"
      },
      {
          "src": "android-app-icon-128x128.png",
          "type": "image/png",
          "sizes": "128x128"
      }],
    "start_url": "/"
}