/// <summary>
        /// 选择图片
        /// </summary>
        /// <param name="bgPath">被选择的图片路径</param>
        private void SelectImage(string bgPath)
        {
            string thumbPath = Path.Combine(AyuiConfig.AYUI_BackgroundImageThumbDirectoryPath, "z自定义", Path.GetFileName(bgPath));

            ConfigSetting.SetXmlValue("skinBg", "path", bgPath.Replace(Environment.CurrentDirectory, ""));
            if (!File.Exists(thumbPath))
            {
                Bitmap      bm          = new Bitmap(bgPath);
                BitmapImage bi          = bm.SetSize(128, 72).ToBitmapImage();
                byte[]      thumbBuffer = bi.ToBytes();
                if (!Directory.Exists(Path.GetDirectoryName(thumbPath)))
                {
                    Directory.CreateDirectory(Path.GetDirectoryName(thumbPath));
                }
                FileStream fs = new FileStream(thumbPath, FileMode.Create);
                fs.Write(thumbBuffer, 0, thumbBuffer.Length);
                fs.Close();
            }
            ConfigSetting.SetXmlValue("skinBg", "thumb", thumbPath.Replace(Environment.CurrentDirectory, ""));
            //更新主题色,使出反编译大法才找到下面这个方法↓
            ThemeManager.AYUI(Application.Current);
            BackgroundImageChanged?.Invoke(this, new StringEventArgs(bgPath));
        }