public override void RenderBefore(RenderContext context)
{
// Let base class perform standard drawing first
base.RenderBefore(context);
Rectangle drawRect = new Rectangle(ClientLocation.X,
ClientLocation.Y + ClientWidth,
ClientWidth,
ClientHeight - (ClientWidth * 2));
context.Renderer.RenderRibbon.DrawRibbonClusterEdge(_ribbon.RibbonShape, context, drawRect, _palette, State);
}