With this tweak you can change the color profile of your screen.
Are you unsatisfied with the color scheme of your display? Maybe the colors seem a bit off to you? Well if you didn't know, you can adjust that. You can change the color profile of your iDevice screen the same way that you can with your Mac using one of Ryan Petrich
's jailbreak tweaks which has been dubbed Color Profiles
. It certainly isn't new, but it's something that seems to have been forgotten in the jailbreak