code: def _init_objcolor(self, node_opts, **kwu):
          
          objgoea = node_opts.kws['dict'].get('objgoea', None)
          # kwu: go2color go2bordercolor dflt_bordercolor key2col
          return Go2Color(self.gosubdag, objgoea, **kwu)
docs: Return user-created Go2Color object or create one.