mapcomplete/manifest.manifest

{
  "name": "MapComplete",
  "short_name": "MapComplete",
  "start_url": "index.html",
  "display": "standalone",
  "background_color": "#fff",
  "description": "Easily edit OpenStreetMap",
  "orientation": "portrait-primary, landscape-primary",
  "icons": [
    {
      "src": "./assets/add.svg",
      "sizes": "192x192",
      "type": "image/png"
    },
    {
      "src": "./assets/add.svg",
      "sizes": "512x512",
      "type": "image/png"
    },
    {
      "src": "./assets/add.svg",
      "sizes": "513x513",
      "type": "image/svg"
    }
  ]
}