Bug 265422 [FieldAssist] Field assist hint popup border is black
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ControlDecoration.java
*/
	private int position;
	/**
	 * The decoration's visibility flag
	 */
	private boolean visible = true;
	/**
	 * Boolean indicating whether the decoration should only be shown when the
	 * control has focus
	 */
	private boolean showOnlyOnFocus = false;
	/**
	 * Boolean indicating whether the decoration should show its description
	 * text in a hover when the user hovers over the decoration.
	 */
	private boolean showHover = true;
	/**
	 * Margin width used between the decorator and the control.
	 */
	private int marginWidth = 0;
	/**
	 * Registered selection listeners.
	 */
	private ListenerList selectionListeners = new ListenerList();
	/**
	 * Registered menu detect listeners.
	 */
	private ListenerList menuDetectListeners = new ListenerList();
	/**
	 * The focus listener