As the value of the Hue parameter increases, the indicator The indicator shown is similar to a _______________. The image is a screenshot of Excel's HSL color adjusting. The indicator referred to is on the Colors window. From left to right, the colors vary by hue. Vertically, they vary by saturation. a. moves horizontally from left to right b. moves horizontally from right to left c. does not move d. moves vertically from top to bottom