manifest.json

{
  "short_name": "Polar",
  "name": "Polar",
  "icons": [
    {
      "src": "/icon.png",
      "type": "image/png",
      "sizes": "512x512"
    },
    {
      "src": "/icon-256.png",
      "type": "image/png",
      "sizes": "256x256"
    },
    {
      "src": "/icon-128.png",
      "type": "image/png",
      "sizes": "128x128"
    },
    {
      "src": "/icon-64.png",
      "type": "image/png",
      "sizes": "64x64"
    },
    {
      "src": "/icon-192.png",
      "type": "image/png",
      "sizes": "192x192"
    },

    {
      "src": "/icon.svg",
      "type": "image/svg",
      "sizes": ["64x64", "128x128", "256x256", "512x512"]
    }
  ],
  "start_url": "/",
  "theme_color": "#484848",
  "background_color": "#484848",
  "display": "fullscreen",
  "scope": "/"

}