This app requires the Muzei Live Wallpaper http://www.muzei.co/
Muzei Desktoppr Extension is an open source extension for the Muzei Live Wallpaper created by Roman Nurik. This extension leverages the API provided by the excellent wallpapers website Desktoppr to grab a random SFW wallpaper and provides it to Muzei to set as the Android device's wallpaper.
Source Code: https://github.com/chap19150/DesktopprMuzei
This app is based upon Roman Nurik's Muzei sample source app and uses the Muzei API. Muzei is released under the Apache 2.0 license.
This app uses the Retrofit library from the fine guys over at Square. Retrofit is released under the Apache 2.0 license.
See the LICENSES file for further details. You can find the integral text of the Apache 2.0 license here: http://www.apache.org/licenses/LICENSE-2.0