manifest.json

{
    "$schema": "https://json.schemastore.org/web-manifest-combined.json",
    "theme_color": "#800080",
    "background_color": "#fff",
    "display": "fullscreen",
    "scope": "./",
    "start_url": "./index.html",
    "name": "Baby Bam Bam",
    "short_name": "Baby Bam Bam",
    "description": "As babies smash on the keyboard or touchscreen, images, letters and numbers appear on the screen.",
    "orientation": "any",
    "icons": [
        {
            "src": "assets/icons/icon-192x192.png",
            "sizes": "192x192",
            "type": "image/png"
        },
        {
            "src": "assets/icons/icon-256x256.png",
            "sizes": "256x256",
            "type": "image/png"
        },
        {
            "src": "assets/icons/icon-384x384.png",
            "sizes": "384x384",
            "type": "image/png"
        },
        {
            "src": "assets/icons/icon-512x512.png",
            "sizes": "512x512",
            "type": "image/png"
        },
        {
            "src": "assets/icons/maskable_icon_x192.png",
            "sizes": "192x192",
            "type": "image/png",
            "purpose": "maskable"
        },
        {
            "src": "assets/icons/maskable_icon_x384.png",
            "sizes": "384x384",
            "type": "image/png",
            "purpose": "maskable"
        },
        {
            "src": "assets/icons/maskable_icon_x512.png",
            "sizes": "512x512",
            "type": "image/png",
            "purpose": "maskable"
        }
    ],
    "screenshots" : [
        {
          "src": "docs/preview.png",
          "sizes": "2589x1630",
          "type": "image/png",
          "platform": "wide",
          "label": "Baby Bam Bam Options Screen"
        },
        {
          "src": "docs/preview2.png",
          "sizes": "2581x1543",
          "type": "image/png",
          "platform": "wide",
          "label": "Baby Bam Bam Play Area"
        }
      ]
}