次のサンプルコードは、アクティブシートタブの前景色を変更します。
fpSpread1.InterfaceRenderer = null;
fpSpread1.VisualStyles = FarPoint.Win.VisualStyles.Off;
FarPoint.Win.Spread.SheetTab st;
st = fpSpread1.TabStrip.ActiveSheetTab;
st.ForeColor = Color.Red;
FpSpread1.InterfaceRenderer = Nothing
FpSpread1.VisualStyles = FarPoint.Win.VisualStyles.Off
Dim st As FarPoint.Win.Spread.SheetTab
st = FpSpread1.TabStrip.ActiveSheetTab
st.ForeColor = Color.Red