firefly-iii/public/manifest.json

{
  "name": "Firefly III",
  "short_name": "Firefly III",
  "icons": [
    {
      "src": "\/android-chrome-192x192.png",
      "sizes": "192x192",
      "type": "image\/png",
      "density": 4
    },
    {
      "src": "\/android-chrome-512x512.png",
      "sizes": "512x512",
      "type": "image\/png"
    }
  ],
  "display": "standalone",
  "start_url": "/",
  "orientation": "portrait"
}