{
    "name": "Email Preview",
    "short_name": "Email Preview",
    "start_url": "/",
    "display": "standalone",
    "background_color": "#f5f5f5",
    "theme_color": "#2563eb",
    "icons": [
        { "src": "icon-192.png", "sizes": "192x192", "type": "image/png" },
        { "src": "icon-512.png", "sizes": "512x512", "type": "image/png" }
    ]
}