Xposed Framework is a powerful tool, that allows you to add certain functionality and features to your device which would otherwise be available only through flashing custom ROMs. Xposed framework requires root to access core Android resources, using them to run different modules to add new functionality to the OS. This tool is considered to a must have for power users, and there are quite a few tutorials and guides on how to get started. As mentioned, root access is required, but keep in mind that rooting your device may result in your warranty being void, and a certain amount of technical know-how is recommended before diving in. Gravity Box – All in one Tweakbox Gravity box is most extensive customization tool. It supports humongous set of features from statusbar, QuickSettings tile management, Lockscreen targets, Statusbar icon coloring, Toggles, Center clock in statusbar, Battery indicator style, Navigation bar tweaks, Advanced power-off menu (re...