content: ' entry point of  MainScene
  ' Note that we need to import this file in MainScene.xml using relative path.
  sub Init()
      ' set background color for scene. Applied only if backgroundUri has empty value
      m.top.backgroundColor = "0x662D91"
      m.top.backgroundUri= "pkg:/images/background.jpg"
      m.loadingIndicator = m.top.FindNode("loadingIndicator") ' store loadingIndicator node to m
      InitScreenStack()
      ShowGridScreen()
      RunContentTask() ' retrieving content
  end sub
  