manifest.json

{
    "name": "Mbot WebBluetooth",
    "short_name": "MBot",
    "icons": [{
            "src": "./assets/images/logo_128.png",
            "type": "image/png",
            "sizes": "128x128"
        }, {
            "src": "./assets/images/logo_152.png",
            "type": "image/png",
            "sizes": "152x152"
        },

        {
            "src": "./assets/images/logo_144.png",
            "type": "image/png",
            "sizes": "144x144"
        }, {
            "src": "./assets/images/logo_192.png",
            "type": "image/png",
            "sizes": "192x192"
        }, {
            "src": "./assets/images/logo_256.png",
            "type": "image/png",
            "sizes": "256x256"
        }, {
            "src": "./assets/images/logo_512.png",
            "type": "image/png",
            "sizes": "512x512"
        }
    ],
    "start_url": "mbot-webbluetooth/index.html",
    "display": "standalone",
    "orientation": "portrait",
    "background_color": "#eaeae8",
    "theme_color": "#eaeae8"
}