content: sub main(params)
  
      screen = createObject("roSGscreen")
      port = createObject("roMessagePort")
      screen.setMessagePort(port)
  
      scene = screen.createScene("Main")
      screen.show() ' vscode_rale_tracker_entry
  
      while true
          msg = wait(0,port)
          msgType = type(msg)
          if "roSGScreenEvent" = msgType
              if msgType.isScreenClose() then return
          end if
      end while
  end sub