fpSpread1.ActiveSheet.Rows.Count = 11;
fpSpread1.ActiveSheet.Columns.Count = 6;
fpSpread1.ActiveSheet.RangeGroupButtonStyle = FarPoint.Win.Spread.RangeGroupButtonStyle.Enhanced;
fpSpread1.ActiveSheet.AddRangeGroup(0, 8, true);
fpSpread1.ActiveSheet.AddRangeGroup(0, 5, true);
fpSpread1.ActiveSheet.AddRangeGroup(1, 3, false);
fpSpread1.ActiveSheet.AddRangeGroup(1, 2, false);
fpSpread1.Sheets.Count = 3;
FarPoint.Win.Spread.SpreadSkin skin = new FarPoint.Win.Spread.SpreadSkin();
FarPoint.Win.Spread.FlatInterfaceRenderer srender = new FarPoint.Win.Spread.FlatInterfaceRenderer();
srender.RangeGroupBackgroundColor = Color.Thistle;
srender.RangeGroupButtonBorderColor = Color.Purple;
srender.RangeGroupLineColor = Color.MidnightBlue;
skin.InterfaceRenderer = srender;
skin.Apply(fpSpread1);