public int getMinimumTabWidth( int tabIndex ) {
		JComponent c = (JComponent) getComponentAt( tabIndex );
		return clientPropertyInt( c, TABBED_PANE_MINIMUM_TAB_WIDTH, 0 );
	}
Returns the minimum width of the tab at the given tab index.
flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatTabbedPane.java