static NodeView GetNodeView()
 {
     return(NodeHelpers.CreateNodeView(Brushes.Black));
 }
 protected static NodeView GetNodeView()
 {
     return(NodeHelpers.CreateNodeView(Brushes.Red));
 }
 protected static NodeView GetNodeView()
 {
     return(NodeHelpers.CreateNodeView(Brushes.DarkViolet));
 }