manifest.json

{
  "name": "Klog",
  "short_name": "Klog",
  "display": "standalone",
  "orientation": "portrait-primary",
  "background_color": "#212121",
  "theme_color": "#212121",
  "start_url": "/",
  "icons": [
    {
      "src": "static/img/klog48.png",
      "sizes": "48x48",
      "type": "image/png"
    },
    {
      "src": "static/img/klog72.png",
      "sizes": "72x72",
      "type": "image/png"
    },
    {
      "src": "static/img/klog96.png",
      "sizes": "96x96",
      "type": "image/png"
    },
    {
      "src": "static/img/klog144.png",
      "sizes": "144x144",
      "type": "image/png"
    },
    {
      "src": "static/img/klog168.png",
      "sizes": "168x168",
      "type": "image/png"
    },
    {
      "src": "static/img/klog192.png",
      "sizes": "192x192",
      "type": "image/png"
    },
    {
      "src": "static/img/klog256.png",
      "sizes": "256x256",
      "type": "image/png"
    },
    {
      "src": "static/img/klog512.png",
      "sizes": "512x512",
      "type": "image/png"
    },
    {
      "src": "static/img/klog1024.png",
      "sizes": "1024x1024",
      "type": "image/png"
    }
  ]
}