{
    "name": "Your App Name",
    "short_name": "App",
    "description": "Description of your app",
    "start_url": "/",
    "display": "standalone",
    "background_color": "#ffffff",
    "theme_color": "#000000",
    "orientation": "portrait-primary",
    "icons": [
      {
        "src": "/images/testicon.png",
      "sizes": "192x192",
      "type": "image/png"
    },
    {
      "src": "/images/testicon.png",
      "sizes": "512x512",
      "type": "image/png"
      }
    ]
  }