Those who use 3D Touch to access the Home screen menu shortcuts from application icons know its usefulness for getting to specific app actions quickly. On the other hand, all of the 3D Touch Home screen menus are pretty bland, and no matter what app you use the 3D Touch gesture on, the menu is always the same color.
A new free jailbreak tweak called Cuttlefish aims to change that by dynamically colorizing the menu background blur to match the dominant color of the application icon you’re using the 3D Touch gesture on.