{ "name": "高醫叫號通知", "short_name": "叫號通知", "start_url": "/", "display": "standalone",
  "background_color": "#ffffff", "theme_color": "#1f6b52",
  "icons": [{ "src": "icon-192.png", "sizes": "192x192", "type": "image/png" }, { "src": "icon-512.png", "sizes": "512x512", "type": "image/png" }] }