{
  "name": "メッセージボード",
  "short_name": "MB APP",
  "start_url": "/",
  "display": "standalone",
  "background_color": "#ffffff",
  "theme_color": "#0000ff",
  "icons": [
    {
      "src": "/embapp_icon_192.svg",
      "sizes": "192x192",
      "type": "image/svg"
    },
    {
      "src": "/embapp_icon_512.svg",
      "sizes": "512x512",
      "type": "image/svg"
    }
  ],
  "screenshots": [
    {
      "src": "/embapp_sc_mobile.png",
      "sizes": "540x720",
      "type": "image/png",
      "form_factor": "narrow"
    },
    {
      "src": "/embapp_sc_pc.png",
      "sizes": "1280x720",
      "type": "image/png",
      "form_factor": "wide"
    }
  ]
}