{
  "name": "ChatApp Firebase",
  "short_name": "ChatApp",
  "description": "Ứng dụng chat realtime",
  "start_url": "/",
  "display": "standalone",
  "orientation": "portrait",
  "theme_color": "#4f46e5",
  "background_color": "#ffffff",
  "icons": [
    {
      "src": "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Crect width='100' height='100' rx='20' fill='%234f46e5'/%3E%3Ctext x='50' y='70' font-size='50' text-anchor='middle' fill='white'%3E💬%3C/text%3E%3C/svg%3E",
      "sizes": "192x192",
      "type": "image/svg+xml"
    }
  ]
}