{ "name": "通知の試験（使い捨て）", "short_name": "通知の試験", "start_url": "/", "scope": "/", "display": "standalone", "background_color": "#ffffff", "theme_color": "#ffffff",
  "icons": [{ "src": "/icons/icon-192.png", "sizes": "192x192", "type": "image/png" }, { "src": "/icons/icon-512.png", "sizes": "512x512", "type": "image/png" }] }