/// <summary>
/// 更新皮肤
/// </summary>
/// <param name="groupId"></param>
/// <param name="isUseCustomStyle"></param>
/// <param name="themeAppearance"></param>
public void ChangeThemeAppearance(long groupId, bool isUseCustomStyle, string themeAppearance)
{
groupRepository.ChangeThemeAppearance(groupId, isUseCustomStyle, themeAppearance);
}