protected boolean isFocused( Component c ) {
		if( c instanceof JScrollPane )
			return FlatScrollPaneUI.isPermanentFocusOwner( (JScrollPane) c );
		else if( c instanceof JComboBox )
			return FlatComboBoxUI.isPermanentFocusOwner( (JComboBox<?>) c );
		else if( c instanceof JSpinner )
			return FlatSpinnerUI.isPermanentFocusOwner( (JSpinner) c );
		else
			return FlatUIUtils.isPermanentFocusOwner( c );
	}
Returns the outline color of the component border specified in client property
{@link FlatClientProperties#OUTLINE}.
flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatBorder.java