{
  "backgroundTextStyle":"light",
  "navigationBarBackgroundColor": "#fff",
  "navigationBarTextStyle":"black",
  "usingComponents": {
    "nav":"/components/nav/nav",
    "tabBar":"/components/book/tabBar/tabBar",
    "calendar": "plugin://calendar/calendar",
    "board":"/components/book/board/board"
  }
}