@ApiStatus.Internal
  public static boolean hideDefaultShelfTab(@NotNull Project project) {
    AbstractVcs singleVcs = ProjectLevelVcsManager.getInstance(project).getSingleVCS();
    if (singleVcs == null) return false;
    return singleVcs.isWithCustomShelves();
  }
@ApiStatus.Internal
  public static boolean hideDefaultShelfTab(@NotNull Project project)