public TabWidthMode getTabWidthMode() {
		return getClientPropertyEnumString( TABBED_PANE_TAB_WIDTH_MODE, TabWidthMode.class,
			"TabbedPane.tabWidthMode", TabWidthMode.preferred );
	}
Returns how the tabs should be sized.
flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatTabbedPane.java