/**
  * Creates new folder with given name.
  *
  * @param levelName Name.
  * @return {@link Composite}.
  */
 private static Composite createFolder(String levelName) {
   Composite composite = new Composite();
   composite.setName(levelName);
   composite.setImage(InspectIT.getDefault().getImage(InspectITImages.IMG_FOLDER));
   return composite;
 }