After you jailbreak ([follow our guides if you haven't
), you have the ability to change any aspect of your device. Cydia is a store that contains countless applications and tweaks (software packages that change your device configurations). A tweak can do something as minor as changing the color of something or as major as letting you use full screen browsing in Mobile Safari - and much more. Some are free and some are paid. Cydia also has various applications and themes; some Apple never accepted into the App Store, such as Grooveshark.
This guide is intended for beginner level jailbreakers and will show you how to install and uninstall a jailbreak tweak.
Installing a Jailbreak Tweak
To begin, make sure that you have a jailbroken