anchor.diff:            line-width:#{args.lineWidth};
             polygon-fill:##{args.polygonFill};
             polygon-opacity:#{args.opacity};
  +          polygon-comp-op:#{args.polygonCompOp};
           }
         """
   
  
positive.code:         cartocss.push @_generateCartocss(
            table: [POLYGONS_TABLE, POINTS_TABLE]
            attrName: 'wdpaid'
            attrVal: config.wdpaId
          )
  
        {
  
negative.code:         opacity: 0.7
          lineWidth: 0.05
          lineColor: '2B3146'
          polygonFill: '2B3146',
          polygonCompOp: 'dst-over'
        }, args)
  
        """
  