Bug 63420 [R21PRES] Flash on tab switch
bundles/org.eclipse.ui.presentations.r21/src/org/eclipse/ui/internal/presentations/R21BasicStackPresentation.java
}
		createPartTab(newPart, index);
		setControlSize();
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.internal.skins.StackPresentation#removePart(org.eclipse.ui.internal.skins.IPresentablePart)
	 */
	public void removePart(IPresentablePart oldPart) {
		if (current == oldPart) {
			titleLabel.setImage(null);
			current = null;
		}
		CTabItem item = getTab(oldPart);
		if (item == null) {
			return;
		}
		oldPart.setVisible(false);
		item.dispose();
		
		setControlSize();
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.internal.skins.StackPresentation#selectPart(org.eclipse.ui.internal.skins.IPresentablePart)
	 */
	public void selectPart(IPresentablePart toSelect) {
		if (toSelect == current) {