@Override
  public boolean isModified() {
    VcsContentAnnotationSettings settings = VcsContentAnnotationSettings.getInstance(myProject);
    if (myHighlightRecentlyChanged.isSelected() != settings.isShow()) return true;
    if (!Comparing.equal(myHighlightInterval.getValue(), settings.getLimitDays())) return true;
    return false;
  }
@Override
  public boolean isModified()