private void InitializeRenderer(ToolStripRenderer renderer)
 {
     using (LayoutTransaction.CreateTransactionIf(this.AutoSize, this, this, PropertyNames.Renderer))
     {
         renderer.Initialize(this);
         for (int i = 0; i < this.Items.Count; i++)
         {
             renderer.InitializeItem(this.Items[i]);
         }
     }
     base.Invalidate(this.Controls.Count > 0);
 }