@Override
  public @NotNull Collection<Charset> getFavorites() {
    Collection<Charset> result = new HashSet<>();
    Project[] projects = ProjectManager.getInstance().getOpenProjects();
    for (Project project : projects) {
      result.addAll(EncodingProjectManager.getInstance(project).getFavorites());
    }
    result.addAll(EncodingProjectManagerImpl.widelyKnownCharsets());
    return result;
  }
@Override
  public @NotNull Collection<Charset> getFavorites()