public static graphDataNodePresenter DefaultPresenter()
        {
            graphDataNodePresenter output = new graphDataNodePresenter();

            output._NodeCategoryFunction = x => x.Column.GetGroup();
            output._NodeLabelFunction    = x => x.Column.GetHeading().or(x.name);
            output._NodeColorFunction    = x => x.Column.GetDefaultBackground().ColorToHex();


            return(output);
        }
 public graphDataNodePresenter(graphDataNodePresenter source)
 {
 }