If you want the tab strip to occupy more or less of the area at the bottom of the control, call the SSSetTabStripRatio function to specify the percentage of the area to occupy.
If you want the sheet tabs to display a different font, call the SSSetTabStripFont function.
If you want to change the shape of the sheet tab, set the SSSetTabEnhancedShape function.
If you want to customize the tab strip colors with the enhanced method, set the SSSetEnhancedSheetTabColors function.