Bug 236324 [Forms] Eclipse 3.4 crashes / failes to repaint when "Close Others" is used with SharedHeaderFormEditor
bundles/org.eclipse.ui.forms/src/org/eclipse/ui/internal/forms/widgets/FormImages.java
Color fBg;
		boolean fVertical;
		int[] fPercents;
		
		public ComplexImageIdentifier(Display display, Color[] colors, int length,
				int[] percents, boolean vertical, Color bg) {
			super(display, colors, length);
			fBg = bg;
			fVertical = vertical;
			fPercents = percents;
		}
		
		public boolean equals(Object obj) {
			if (obj instanceof ComplexImageIdentifier) {
				ComplexImageIdentifier id = (ComplexImageIdentifier) obj;
				if (super.equals(obj)  &&
						id.fVertical == fVertical && Arrays.equals(id.fPercents, fPercents)) {
					if ((id.fBg == null && fBg == null) ||