manifest.json

{
  "name": "Sculprit Online Visual DOM Editing Tool",
  "short_name": "Sculprit",
  "icons": [
      {
        "src": "icon-128.png",
        "type": "image/png",
        "sizes": "128x128"
      }, {
        "src": "icon-152.png",
        "type": "image/png",
        "sizes": "152x152"
      }, {
        "src": "icon-144.png",
        "type": "image/png",
        "sizes": "144x144"
      }, {
        "src": "icon-192.png",
        "type": "image/png",
        "sizes": "192x192"
      },
      {
        "src": "icon-256.png",
        "type": "image/png",
        "sizes": "256x256"
      },
      {
        "src": "icon-512.png",
        "type": "image/png",
        "sizes": "512x512"
      },
      {
        "src": "path/to/icon-196.png",
        "sizes": "196x196",
        "type": "image/png",
        "purpose": "any maskable"
      }
    ],
  "start_url": "/index.html",
  "scope": "/",
  "display": "standalone",
  "orientation": "portrait",
  "background_color": "#f4036e",
  "theme_color": "#f4036e"
}