{
    "name": "demo",
    "short_name": "demo",
    "start_url": "/",
    "display": "standalone",
    "background_color": "#ffffff",
    "theme_color": "#1a73e8",
    "icons": [
        {
            "src": "icons/logo-512x512.png",
            "sizes": "512x512",
            "type": "image/png"
        }
        
    ]
}