<gos>
  <go name="default" templs="../layerDefs/_midground3">
    <renderLayer>
      <layerParent>parent</layerParent>
    </renderLayer>
    <swfRender>
      <swfOverrideExtraScale>2</swfOverrideExtraScale>
    </swfRender>
  </go>
</gos>