{
    "name": "undefined",
    "short_name": "undefined",
    "description": "undefined",
    "orientation": "any", 
    "start_url": "/",
    "id": "/",
    "icons": [
        {
            "src": "favicon.svg",
            "sizes": "16x16 24x24 32x32 64x64",
            "type": "image/x-icon"
        },
        {
            "src": "logo-48.png",
            "sizes": "16x16 24x24 32x32 48x48 64x64",
            "type": "image/png"
        },
        {
            "src": "logo-192.png",
            "sizes": "192x192",
            "type": "image/png"
        },
        {
            "src": "logo-512.png",
            "sizes": "512x512",
            "type": "image/png"
        }
    ],
    "theme_color": "#000000",
    "background_color": "#ffffff",
    "display": "standalone",
    "protocol_handlers": [{
        "protocol": "web+chichat",
        "url": "/?allow=%s"
    }]
}