I have the option of how many colors I chose to use or turn off . Most I can get is 4 even when I chose 10 . Figure I have it on custom some how . The setting where you set shallow depth, is red . The first highlight is green and is set on 5 with a maximum of 8 ft . the rest is light blue or white . Any Idea how to get different colors every 10 -12 ft of depth .