Bug 265422 [FieldAssist] Field assist hint popup border is black
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/DecoratedField.java
*            it should always be shown.
	 * 
	 */
	public void addFieldDecoration(FieldDecoration decoration, int position,
			boolean showOnFocus) {
		final Label label;
		FormData formData;
		int i = indexForPosition(position);
		if (decDatas[i] == null) {
			formData = createFormDataForIndex(i, decoration.getImage());
			label = new Label(form, SWT.HORIZONTAL | SWT.VERTICAL | SWT.CENTER);
			label.addMouseTrackListener(new MouseTrackListener() {
				public void mouseHover(MouseEvent event) {
					FieldDecorationData decData = (FieldDecorationData) event.widget
							.getData();
					String desc = decData.decoration.getDescription();
					if (desc != null) {
						showHoverText(desc, label);
					}
				}
				public void mouseEnter(MouseEvent event) {
				}
				public void mouseExit(MouseEvent event) {
					hideHover();
				}
			});
			decDatas[i] = new FieldDecorationData(decoration, label, formData,
					showOnFocus);
		} else {
			label = decDatas[i].label;