message: Fixed: change to constant.
diff: @@ -268,7 +268,7 @@ export default function () {
  * @param {String} saturation or brightness
  */
  this.getSpectrumPosition = param => {
  - let hsv = this.getHsv();
  + const hsv = this.getHsv();
  if (param === 'saturation') {
  let saturation = hsv.s;
  if (saturation > 100) {
  