nostr:nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqklkk3vrzme455yh9rl2jshq7rc8dpegj3ndf82c3ks2sk40dxt7qq7hjgu nostr:nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqhxx76n82ags8jrduk0p3gqrfyqyaxnrlnynu9p5rt2vmwjq6ts3qf3easn It changes the color enough to completely turn off the blue pixels for pure blue. It should make the pure blue image completely black. That's already quite extreme and has questionable usability since blue text on black will be invisible as one example of the consequences of turning it all the way up to full. That's why stock OS doesn't let you turn it that much.