Themer is a launcher where pretty much everything can be customized. This app works similarly to Buzz Launcher where you download a theme that changes almost everything about all of your home screens. Each them is then individually customizable which gives you a virtually unlimited number of themes and combinations to work with. Themer developers also give this app away for free and all themes are free which makes it a lot of fun to goof around with without worrying about spending too much money. It’s powerful, has icon pack support, and is integrated with Zooper Widget.