@Override
    public void apply() {
      boolean oldValue = myConfig.SHOW_LINKED_FILES;

      myConfig.SHOW_LINKED_FILES = myShowLinkedFiles.isSelected();

      // TODO: make this a ConfigListener
      if (oldValue != myConfig.SHOW_LINKED_FILES) {
        final Project[] projects = ProjectManager.getInstance().getOpenProjects();
        for (Project project : projects) {
          ProjectView.getInstance(project).refresh();
        }
      }
    }
@Override
    public void apply()