public PaletteRoot getPaletteRootByResourceManager(PaletteResourceManager resourceManager) {
   paletteRoot = PaletteRootFactory.createPaletteByResourceManager(resourceManager);
   return paletteRoot;
 }
 public PaletteRoot getPaletteRoot() {
   if (paletteRoot == null) paletteRoot = PaletteRootFactory.createPalette(editorPart);
   return paletteRoot;
 }