@Override
	protected void installListeners() {
		super.installListeners();

		// necessary to update focus background
		focusListener = new FlatUIUtils.RepaintFocusListener( getComponent(), c -> focusedBackground != null );
		getComponent().addFocusListener( focusListener );
	}
Provides the Flat LaF UI delegate for {@link javax.swing.JTextArea}.

<!-- BasicTextAreaUI -->

@uiDefault TextArea.font						Font
@uiDefault TextArea.background				Color
@uiDefault TextArea.foreground				Color	also used if not editable
@uiDefault TextArea.caretForeground			Color
@uiDefault TextArea.selectionBackground		Color
@uiDefault TextArea.selectionForeground		Color
@uiDefault TextArea.inactiveForeground		Color	used if not enabled (yes, this is confusing; this should be named disabledForeground)
@uiDefault TextArea.border					Border
@uiDefault TextArea.margin					Insets
@uiDefault TextArea.caretBlinkRate			int		default is 500 milliseconds

<!-- FlatTextAreaUI -->

@uiDefault Component.minimumWidth			int
@uiDefault TextArea.disabledBackground		Color	used if not enabled
@uiDefault TextArea.inactiveBackground		Color	used if not editable
@uiDefault TextArea.focusedBackground		Color	optional

@author Karl Tauber
flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTextAreaUI.java