Team Win Recovery Project (TWRP) is a custom recovery built with ease-of-use and customization in mind. It started from the ground up by taking AOSP recovery and loading it with the standard recovery options, then added a lot of own features. It’s a fully touch driven user interface – no more volume rocker or power buttons to mash. The GUI (Graphical User Interface) is also fully XML driven and completely theme-able. You can change just about every aspect of the look and feel.