content: sub main(args as dynamic)
      screen = CreateObject("roSGScreen")
      m.port = CreateObject("roMessagePort")
      screen.setMessagePort(m.port)
      scene = screen.CreateScene("MainScene")
      scene.backgroundUri = "pkg:/images/DeepSpace.jpg"
      screen.show()
  
      if (args.mediaType <> invalid) and (args.contentId <> invalid) then
          deeplink = {
              mediaType: args.mediaType,
              contentId: args.contentId
          }
  
          scene.deeplink = deeplink
      end if
  
      while(true)
          msg = wait(0, m.port)
          msgType = type(msg)
          if msgType = "roSGScreenEvent"
              if msg.isScreenClosed() then return
          end if
      end while
  end sub
  