Bug 239300 [TabbedProperties] underline missing from tab label when tab has focus
bundles/org.eclipse.ui.views.properties.tabbed/src/org/eclipse/ui/internal/views/properties/tabbed/view/TabbedPropertyList.java
* Colour 3 COLOR_LIST_BACKGROUND
		 */
		listBackground = Display.getCurrent().getSystemColor(
				SWT.COLOR_LIST_BACKGROUND);
		/*
		 * Colour 13 COLOR_WIDGET_BACKGROUND
		 */
		widgetBackground = Display.getCurrent().getSystemColor(
				SWT.COLOR_WIDGET_BACKGROUND);
		/*
		 * Colour 15 COLOR_WIDGET_DARK_SHADOW
		 */
		widgetDarkShadow = Display.getCurrent().getSystemColor(
				SWT.COLOR_WIDGET_DARK_SHADOW);
		/*
		 * Colour 16 COLOR_WIDGET_FOREGROUND
		 */
		widgetForeground = Display.getCurrent().getSystemColor(
				SWT.COLOR_WIDGET_FOREGROUND);
		/*
		 * Colour 19 COLOR_WIDGET_NORMAL_SHADOW
		 */
		widgetNormalShadow = Display.getCurrent().getSystemColor(
				SWT.COLOR_WIDGET_NORMAL_SHADOW);
		RGB infoBackground = Display.getCurrent().getSystemColor(
				SWT.COLOR_INFO_BACKGROUND).getRGB();
		RGB white = Display.getCurrent().getSystemColor(SWT.COLOR_WHITE)
				.getRGB();
		RGB black = Display.getCurrent().getSystemColor(SWT.COLOR_BLACK)
				.getRGB();