{
  "name": "Smart Messenger",
  "short_name": "Smart city",
  "description": "Smart Messenger",
  "start_url": "/",
  "scope": "/",
  "display": "standalone",
  "background_color": "#ffffff",
  "theme_color": "#004686",
  "orientation": "portrait-primary",
  "icons": [
    {
      "src": "/vector-icons/512.png",
      "sizes": "512x512",
      "type": "image/png",
      "purpose": "any maskable"
    },
    {
      "src": "/vector-icons/1024.png",
      "sizes": "1024x1024",
      "type": "image/png",
      "purpose": "any"
    }
  ]
}