previewTree = new TreeViewer(group);
previewTree.setContentProvider(new PreviewContentProvider());
final ScriptElementLabels scriptElementLabels = DeeUILanguageToolkit.getDefault().getScriptElementLabels();
DeeModelElementLabelProvider labelProvider = new DeeModelElementLabelProvider() {
@Override
public String getText(Object object) {
// In the future we need to make sure these flags are calculated properly according to preferences
long labelFlags = AppearanceAwareLabelProvider.DEFAULT_TEXTFLAGS