{
  "name": "MilkBook",
  "short_name": "MilkBook",
  "start_url": "/",
  "display": "standalone",
  "background_color": "#ffffff",
  "theme_color": "#ffffff",
  "icons": [
    {
      "src": "/image/1in1.png",
      "sizes": "512x512",
      "type": "image/png"
    }
  ],

    "screenshots": [
        {
            "src": "/image/1in1.png",
            "sizes": "540x720",
            "type": "image/png",
            "form_factor": "narrow"
        },
        {
            "src": "/image/4in4.png",
            "sizes": "720x540",
            "type": "image/png",
            "form_factor": "wide"
        }
    ]
}