/// <summary>
 /// Clean up any resources being used.
 /// </summary>
 /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
 protected override void Dispose(bool disposing)
 {
     if (disposing)
     {
         _toolImages.Dispose();
         if (_imageInfo != null)
         {
             _imageInfo.Dispose();
             _imageInfo = null;
         }
         if (components != null)
         {
             components.Dispose();
             components = null;
         }
     }
     base.Dispose(disposing);
 }