anchor.diff:                      DynObj.setValue    n "label" (nodes |> Seq.map (fun  x->x.Label)) 
                       DynObj.setValueOpt n "groups" groups
                       DynObj.setValueOpt n "pad" nodePadding
  -                    DynObj.setValueOpt n "thickness" nodeThicknes
  +                    DynObj.setValueOpt n "thickness" nodeThickness
                       DynObj.setValueOpt n "x" xRanks
                       DynObj.setValueOpt n "y" yRanks
                       DynObj.setValueOpt n "color" nodeClrs
  
positive.code:                 nodes:Node seq, 
                  links:Link seq, 
                  ?nodePadding:float,
                  ?nodeThicknes:float,
                  ?nodeColor:obj,
                  ?nodeLineColor:obj,
                  ?nodeLineWidth:float,
  