public void setTabInsets( int tabIndex, Insets tabInsets ) {
		JComponent c = (JComponent) getComponentAt( tabIndex );
		c.putClientProperty( TABBED_PANE_TAB_INSETS, tabInsets );
	}
Specifies the insets of the tab at the given tab index.

@see #setTabHeight(int)
flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatTabbedPane.java