GetContrastingColor ( GraphDrawingContext oGraphDrawingContext, Byte btAlpha, Boolean bUseMaximumContrast ) { Debug.Assert(oGraphDrawingContext != null); AssertValid(); return(WpfGraphicsUtil.SetWpfColorAlpha( WpfGraphicsUtil.GetContrastingColor( oGraphDrawingContext.BackColor, bUseMaximumContrast), btAlpha)); }