{
    "name": "PWA sample",
    "short_name": "PWA",
    "icons": [{
        "src": "./icon81x81.png",
        "sizes": "81x81",
        "type": "image/png"
      },
      {
        "src": "./icon180x180.png",
        "sizes": "180x180",
        "type": "image/png"
      },
      {
        "src": "./icon192x192.png",
        "sizes": "192x192",
        "type": "image/png"
      },
      {
        "src": "./icon512x512.png",
        "sizes": "512x512",
        "type": "image/png"
      }
    ],
   
    "theme_color": "#c0c0c0",
    "background_color": "#dcdcdc",
    "display": "standalone",
    "start_url": "./index.html"
  }