@Override
 public void renderChanges(ExpandItem item) throws IOException {
   WidgetLCAUtil.renderCustomVariant(item);
   WidgetLCAUtil.renderBounds(item, getBounds(item));
   ItemLCAUtil.renderChanges(item);
   renderProperty(item, PROP_EXPANDED, item.getExpanded(), false);
   renderProperty(item, PROP_HEADER_HEIGHT, item.getHeaderHeight(), DEFAULT_HEADER_HEIGHT);
 }
 @Override
 public void renderChanges(CTabFolder folder) throws IOException {
   ControlLCAUtil.renderChanges(folder);
   WidgetLCAUtil.renderCustomVariant(folder);
   renderProperty(folder, PROP_TAB_POSITION, getTabPosition(folder), DEFAULT_TAB_POSITION);
   renderProperty(folder, PROP_TAB_HEIGHT, folder.getTabHeight(), DEFAULT_TAB_HEIGHT);
   renderProperty(folder, PROP_MIN_MAX_STATE, getMinMaxState(folder), DEFAULT_MIN_MAX_STATE);
   renderProperty(folder, PROP_MINIMIZE_BOUNDS, getMinimizeBounds(folder), ZERO_BOUNDS);
   renderProperty(folder, PROP_MINIMIZE_VISIBLE, folder.getMinimizeVisible(), false);
   renderProperty(folder, PROP_MAXIMIZE_BOUNDS, getMaximizeBounds(folder), ZERO_BOUNDS);
   renderProperty(folder, PROP_MAXIMIZE_VISIBLE, folder.getMaximizeVisible(), false);
   renderProperty(folder, PROP_CHEVRON_BOUNDS, getChevronBounds(folder), ZERO_BOUNDS);
   renderProperty(folder, PROP_CHEVRON_VISIBLE, getChevronVisible(folder), false);
   renderProperty(folder, PROP_UNSELECTED_CLOSE_VISIBLE, folder.getUnselectedCloseVisible(), true);
   renderProperty(folder, PROP_SELECTION, folder.getSelection(), null);
   renderProperty(folder, PROP_SELECTION_BACKGROUND, getSelectionBackground(folder), null);
   renderProperty(folder, PROP_SELECTION_FOREGROUND, getSelectionForeground(folder), null);
   renderProperty(
       folder, PROP_SELECTION_BACKGROUND_IMAGE, getSelectionBackgroundImage(folder), null);
   renderSelectionBackgroundGradient(folder);
   renderProperty(folder, PROP_BORDER_VISIBLE, folder.getBorderVisible(), false);
   renderListenDefaultSelection(folder);
 }