globalmapper.SetBackgroundColor
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.. currentmodule:: globalmapper
.. py:function:: SetBackgroundColor (COLORREF aBgColor) -> COLORREF

	Sets the background color to use when drawing and exporting layers. The old background color is returned.
	
	:param COLORREF aBgColor: The new background color
	:returns: The previous background color which was just replaced
	:rtype: COLORREF