Anyone with an iPhone 6s or newer can use 3D Touch gestures on their Home screen icons to access Quick Action menus with various app shortcuts. As useful as they can be, these menus can look incredibly bland on stock devices.
A new free jailbreak tweak called SB3DTouchColor by iOS developer Cole Cabral improves the aesthetic of these menus. It does so by colorizing them to match the dominant color of the respective app icon.