content: function init()
      m.top.backgroundUri = ""
      m.top.backgroundColor = "#030712"
  
      m.loadingIndicator = m.top.findNode("spinner")
      InitScreenStack()
      ShowHomeScreen()
  end function
  
  function OnkeyEvent(key as string, press as boolean) as boolean
      result = false
      if press
          if key = "back"
              numberOfScreens = m.screenStack.Count()
              if numberOfScreens > 1
                  CloseScreen(invalid)
                  result = true
              end if
          end if
      end if
      return result
  end function
  