Bug 265422 [FieldAssist] Field assist hint popup border is black
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/DecoratedField.java
* decorations.
	 */
	private Composite createForm(Composite parent) {
		Composite composite = new Composite(parent, SWT.NO_FOCUS);
		
		composite.setBackgroundMode(SWT.INHERIT_DEFAULT);
		composite.setLayout(new FormLayout());
		return composite;
	}
	/**
	 * Add any listeners needed on the target control.
	 */
	private void addControlListeners() {
		control.addDisposeListener(new DisposeListener() {
			public void widgetDisposed(DisposeEvent event) {
				if (hover != null) {
					hover.dispose();
				}
			}
		});
		control.addFocusListener(new FocusListener() {
			public void focusGained(FocusEvent event) {
				controlFocusGained();
			}
			public void focusLost(FocusEvent event) {
				controlFocusLost();
			}
		});
	}
	/*