{
  "id": "/", "name": "ON.X Messenger", "short_name": "ON.X",
  "lang": "ko", "start_url": "/", "scope": "/", "display": "standalone",
  "background_color": "#f0f5f4", "theme_color": "#174e43",
  "icons": [
    {"src":"/icon-192.png","sizes":"192x192","type":"image/png","purpose":"any maskable"},
    {"src":"/icon-512.png","sizes":"512x512","type":"image/png","purpose":"any maskable"}
  ]
}