content: ' entry point of MainScene
  sub Init()
      ' set background color for scene. Applied only if backgroundUri has empty value
      m.top.backgroundColor = "0x6f1bb1"
      m.top.backgroundUri = ""
      m.loadingIndicator = m.top.FindNode("LoadingIndicator") ' store loadingIndicator node to m
      InitScreenStack()
      ShowGridScreen()
      RunContentTask() ' retrieving content
  end sub