If you ever felt that you wanted a quicker way of adjusting your device's brightness rather than opening Control Center, you should try out a new jailbreak tweak known as Brightness Activator 2 that takes advantage of Activator gestures.
Just by looking at its name, you must have guessed by now what the tweak does. Brightness Activator 2 allows users to adjust their device's display brightness by making use of Activator. This means that you can assign Activator gestures to increase or decrease the brightness by a specific amount without having to launch Control Center or Settings app.