[SPREAD/WINFORM] 헤더 셀 그라디언트 추가하기

FarPoint.Win.Spread.CellType.GradientHeaderRenderer gradientHeaderRenderer = new FarPoint.Win.Spread.CellType.GradientHeaderRenderer
(
    Color.Yellow,
    Color.Orange,
    Color.YellowGreen,
    Color.Bisque,
    System.Drawing.Drawing2D.LinearGradientMode.ForwardDiagonal
);

fpSpread1.ActiveSheet.ColumnHeader.Rows[0].Renderer     = gradientHeaderRenderer;
fpSpread1.ActiveSheet.RowHeader.Columns[0].Renderer     = gradientHeaderRenderer;
fpSpread1.ActiveSheet.SheetCorner.DefaultStyle.Renderer = gradientHeaderRenderer;