There are tons of settings and adjustments hidden within iOS 8. The jailbreak tweak AdvancedSettings8 makes it possible to explore these settings and customize every nook and cranny of the system. The word advanced in the title is an understatement. Once installed, users can start playing with values and sliders, viewing the results immediately without a respring.
Settings -> AdvancedSettings8 only contains a toggle to enable or disable the tweak in its entirety. The real magic happens with a long press on the Settings app icon on the home screen. This will bring up a list of around 20 items that contain submenus capable of changing things like gravity, elasticity, mass, and stiffness - just the tip of the iceberg.