Bug 265721 [CSS] 3.x CSS Presentation
We should create a specialized Presentation so CSS will work in 3.x. See the rcp example (and then move the Presentation and DefaultTabFolder out of the example).
examples/org.eclipse.e4.ui.examples.css.rcp/src/org/eclipse/e4/ui/examples/css/rcp/presentation/CSSPresentationFactory.java
* other than the default. This is mainly intended for RCP applications
		 * or for expert users (i.e., via the plug-in customization file).
		 * 
		 * Bug 32789.
		 */
		final IPreferenceStore store = PlatformUI.getPreferenceStore();
		if (store
				.contains(IWorkbenchPreferenceConstants.EDITOR_MINIMUM_CHARACTERS)) {
			final int minimumCharacters = store
					.getInt(IWorkbenchPreferenceConstants.EDITOR_MINIMUM_CHARACTERS);
			if (minimumCharacters >= 0) {
				folder.setMinimumCharacters(minimumCharacters);
			}
		}
		PresentablePartFolder partFolder = new PresentablePartFolder(folder);
		TabbedStackPresentation result = new TabbedStackPresentation(site,
				partFolder, new StandardEditorSystemMenu(site));
		DefaultThemeListener themeListener = new DefaultThemeListener(folder,
				result.getTheme());
		result.getTheme().addListener(themeListener);
		new DefaultMultiTabListener(result.getApiPreferences(),
				IWorkbenchPreferenceConstants.SHOW_MULTIPLE_EDITOR_TABS, folder);
		new DefaultSimpleTabListener(result.getApiPreferences(),
				IWorkbenchPreferenceConstants.SHOW_TRADITIONAL_STYLE_TABS,
				folder);
		return result;
	}
	/*
	 * (non-Javadoc)
	 *