code: function() {
              var size = this.get(this.OPT.PICKER_SIZE),
                  s = this.get(this.OPT.SATURATION),
                  v = this.get(this.OPT.VALUE);
  
              s = Math.round(s * size / 100);
              v = Math.round(size - (v * size / 100));
  
              this.logger.log("Setting picker slider to " + [s, v]);
  
              this.pickerSlider.setRegionValue(s, v, this.skipAnim);
          }
docs: Moves the picker slider into the position dictated by the current state
  of the control
  @method _updatePickerSlider
  @protected