Before make changes, add a widget on home screen, read this article if you have no idea to do so
http://wolsrm.blogspot.com/2013/05/tutorial-how-to-use-uccw-skin.html
After added a widget on home screen, you can change skin color or change hotspot application by following steps below.
1. Add "UCCW Hotspots Toggle" on home screen, and touch it to unlock the toggle