manifest.json

{
  "name": "{$ title $}",
  "short_name": "{$ webapp.shortName $}",
  "start_url": "./?utm_source=web_app_manifest",
  "display": "standalone",
  "background_color": "{$ webapp.backgroundColor $}",
  "theme_color": "{$ webapp.themeColor $}",
  "icons": [
    {
      "src": "images/manifest/icon-16.png",
      "sizes": "16x16",
      "type": "image/png"
    },
    {
      "src": "images/manifest/icon-32.png",
      "sizes": "32x32",
      "type": "image/png"
    },
    {
      "src": "images/manifest/icon-48.png",
      "sizes": "48x48",
      "type": "image/png"
    },
    {
      "src": "images/manifest/icon-57.png",
      "sizes": "57x57",
      "type": "image/png"
    },
    {
      "src": "images/manifest/icon-60.png",
      "sizes": "60x60",
      "type": "image/png"
    },
    {
      "src": "images/manifest/icon-72.png",
      "sizes": "72x72",
      "type": "image/png"
    },
    {
      "src": "images/manifest/icon-76.png",
      "sizes": "76x76",
      "type": "image/png"
    },
    {
      "src": "images/manifest/icon-96.png",
      "sizes": "96x96",
      "type": "image/png"
    },
    {
      "src": "images/manifest/icon-114.png",
      "sizes": "114x114",
      "type": "image/png"
    },
    {
      "src": "images/manifest/icon-120.png",
      "sizes": "120x120",
      "type": "image/png"
    },
    {
      "src": "images/manifest/icon-144.png",
      "sizes": "144x144",
      "type": "image/png"
    },
    {
      "src": "images/manifest/icon-152.png",
      "sizes": "152x152",
      "type": "image/png"
    },
    {
      "src": "images/manifest/icon-180.png",
      "sizes": "180x180",
      "type": "image/png"
    },
    {
      "src": "images/manifest/icon-192.png",
      "sizes": "192x192",
      "type": "image/png"
    },
    {
      "src": "images/manifest/icon-512.png",
      "sizes": "512x512",
      "type": "image/png"
    }
  ],
  "gcm_sender_id": "103953800507"
}