anchor.diff:                  nodes:Node seq, 
                   links:Link seq, 
                   [<Optional;DefaultParameterValue(null)>] ?nodePadding:float,
  -                [<Optional;DefaultParameterValue(null)>] ?nodeThicknes:float,
  +                [<Optional;DefaultParameterValue(null)>] ?nodeThickness:float,
                   [<Optional;DefaultParameterValue(null)>] ?nodeColor:obj,
                   [<Optional;DefaultParameterValue(null)>] ?nodeLineColor:obj,
                   [<Optional;DefaultParameterValue(null)>] ?nodeLineWidth:float,
  
negative.code:                     nodes, 
                      links, 
                      ?nodePadding=nodePadding,
                      ?nodeThickness=nodeThickness,
                      ?nodeColor=nodeColor,
                      ?nodeLineColor=nodeLineColor,
                      ?nodeLineWidth=nodeLineWidth,
  