小程序地图polyline绘制彩虹线时，colorList属性确定是有效的吗？

polylines: [{
      points: [{
          longitude: 121.44577861,
          latitude: 37.48205260
        },
        {
          longitude: 121.4479565600,
          latitude: 37.4831295800
        }, {
          longitude: 121.4480263000,
          latitude: 37.4831636400
        }, {
          longitude: 121.44820869,
          latitude: 37.48330837
        }
      ],
      color: "#33c9FFDD",
      colorList: ['#006400', '#FFFF00', '#000000', '#000000'],
      width: 5,
      arrowLine: true,
      dottedLine: false
    }],