{
    "name": "Service Worker YMBT Sample",
    "short_name": "yamabato sample",
    "icons": [
        {
            "src": "/yamabato-logo.png",
            "sizes": "512x512",
            "type": "image/png"
        }
    ],
    "start_url": "/",
    "display": "standalone",
    "theme_color": "#e91e63",
  "gcm_sender_id": "185461303283"
}