Pony.fm/public/manifest.json

{
  "short_name": "Pony.fm",
  "name": "Pony.fm",
  "icons": [
    {
      "src": "images/icons/app-icon-96.png",
      "sizes": "96x96",
      "type": "image/png"
    },
    {
      "src": "images/icons/app-icon-144.png",
      "sizes": "144x144",
      "type": "image/png"
    },
    {
      "src": "images/icons/app-icon-192.png",
      "sizes": "192x192",
      "type": "image/png"
    }
  ],
  "theme_color": "#84528A",
  "background_color": "#EEE",
  "start_url": "/",
  "display": "standalone",
  "orientation": "portrait"
}