{
  "name": "留言通知系统",
  "short_name": "留言板",
  "start_url": "index.php",
  "display": "standalone",
  "background_color": "#ffffff",
  "icons": [{
    "src": "icon-192.png",
    "sizes": "192x192",
    "type": "image/png"
  }]
}