Phonograph by Karim Abou Zeid
Material Dialogs and Cab by Aidan Michael Follestad
AOSP Support Librariesby AOSP contributors
Glide by Sam Judd
Retrofit by Square team
Material Contextual Action Bar by Aidan Michael Follestad
OkHttp by Square team
CircleImageView by Henning Dodenhof
MaterialProgressBar by Zhang Hai
Android In-App Billing v3 Library by Henning Dodenhof
Advanced RecyclerView by Haruki Hasegawa
Android-ObservableScrollView by Soichiro Kashima
Icons by Austin Andrews