Bug 61313 Platform native icons not used in dialogs
N20040506 For example the 'info' icon for operations in progress, the 'error' icon when an exception occurs, and the 'question' icon when asked to confirm a resource deletion. These used to use the native icons on Windows XP but now they look quite different and non-native. This is a fairly recent regression.
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/Dialog.java
* The <code>Dialog</code> implementation of this framework method adds
	 * standard ok and cancel buttons using the <code>createButton</code>
	 * framework method. These standard buttons will be accessible from
	 * <code>getCancelButton</code>, and <code>getOKButton</code>.
	 * Subclasses may override.
	 * </p>
	 * 
	 * @param parent
	 *            the button bar composite
	 */
	protected void createButtonsForButtonBar(Composite parent) {
		
		createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL,
				true);
		createButton(parent, IDialogConstants.CANCEL_ID,
				IDialogConstants.CANCEL_LABEL, false);
	}
	/*
	 * @see Window.initializeBounds()
	 */
	protected void initializeBounds() {
		String platform = SWT.getPlatform();
		if ("carbon".equals(platform)) { 
			
			Shell shell = getShell();
			if (shell != null) {
				Button defaultButton = shell.getDefaultButton();
				if (defaultButton != null
						&& isContained(buttonBar, defaultButton))
					defaultButton.moveBelow(null);