{
            "name": "driving",
            "short_name": "",
            "description": "driving",
            "start_url": "/",
            "display": "standalone", 
            "icons": [{"src": "48-48.png","sizes": "48x48"},{"src": "48-48.png","sizes": "72x72 96x96","purpose": "maskable"},{"src": "192-192.png","sizes": "128x128 256x256"},{"src": "512-512.png","sizes": "512x512"}]
            }