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/MessageDialog.java
Composite composite = new Composite(parent, SWT.NONE);
		GridLayout layout = new GridLayout();
		layout.marginHeight = 0;
		layout.marginWidth = 0;
		composite.setLayout(layout);
		GridData data = new GridData(GridData.FILL_BOTH);
		data.horizontalSpan = 2;
		composite.setLayoutData(data);
		
		customArea = createCustomArea(composite);
		
		if (customArea == null)
			customArea = new Label(composite, SWT.NULL);
		return composite;
	}
	/**
	 * Gets a button in this dialog's button bar.
	 * 
	 * @param index
	 *            the index of the button in the dialog's button bar
	 * @return a button in the dialog's button bar
	 */
	protected Button getButton(int index) {
		return buttons[index];
	}
	/**
	 * Returns the minimum message area width in pixels This determines the
	 * minimum width of the dialog.
	 * <p>