content: sub init()
    m.top.visible = false
    m.top.spinInterval = 1
    m.top.uri = "pkg:/images/busyspinner_hd.png"
    m.top.poster.observeField("loadStatus", "showSpinner")
  end sub
  
  sub showSpinner()
    if m.top.poster.loadStatus = "ready"
      centerX = (1920 - m.top.poster.bitmapWidth) / 2
      centerY = (1080 - m.top.poster.bitmapHeight) / 2
      m.top.translation = [ centerX, centerY ]
      m.top.visible = true
    end if
  end sub
  