{  "name":"",  "short_name":"",  "description":"This is a the  Lobby",  "icons": [   {    "src":"/lobby/includes/gmbt/img/-192-icon.png",    "sizes":"192x192",    "type": "image/png"  },  {    "src":"/lobby/includes/gmbt/img/-512-icon.png",    "sizes":"512x512",    "type":"image/png"  }  ],  "scope":"/lobby/",  "display":"standalone",  "background_color":"black",  "theme_color":"#",  "languageCode":"en",   "version":""}