private void SaveBackgroundFile()
        {
            if (IsUserBmp && File.Exists(userImageFile))
            {
                string fileName = Path.GetFileName(userImageFile);

                string destinationFilePath = Ap.FolderImagesBackground + fileName;

                if (!File.Exists(destinationFilePath))
                {
                    File.Copy(userImageFile, destinationFilePath);
                }

                Ap.BoardTheme.KvBackground.Set(UserBmp, fileName);
                Ap.BoardTheme.KvBackground.WriteXml(Kv.GetFilePath(KvType.BackgroundThemes));
            }
        }