code: function(list, map, legendSize) {
              var hexColor;
              this.colorList = [];
              this.hcConfig.colors = [];
              for(i = 0; i < list.length; i++) {
                  hexColor = this.colorPalette.getColor(list[i], map[list[i]], legendSize);
                  this.colorList.push(hexColor);
                  this.hcConfig.colors.push(this.colorUtils.addAlphaToColor(hexColor, 1.0));
              }
          }
docs: override the inner charts will handle adding opacity to their color schemes