manifest.json

{
  "short_name": "River Score",
  "name": "Up and Down the River",
  "start_url": "/und-river/",
  "scope": "/und-river/",
  "display": "standalone",
  "theme_color": "#000000",
  "background_color": "#ffffff",
  "icons": [
    {
      "src": "favicon.ico",
      "sizes": "64x64 32x32 24x24 16x16",
      "type": "image/x-icon"
    },
    {
      "src": "logo192.png",
      "type": "image/png",
      "sizes": "192x192"
    },
    {
      "src": "logo256.png",
      "type": "image/png",
      "sizes": "256x256"
    },
    {
      "src": "logo384.png",
      "type": "image/png",
      "sizes": "384x384"
    },
    {
      "src": "logo512.png",
      "type": "image/png",
      "sizes": "512x512"
    },
    {
      "src": "maskable.png",
      "type": "image/png",
      "sizes": "196x196",
      "purpose": "any maskable"
    }
  ]
}