Use APKPure App
Get Unity Theme for Smart Launcher old version APK for Android
A free Smart Launcher theme inspired by Ubuntu
A free theme inspired by the Ubuntu UI and suru icon pack.
You need Smart Launcher installed on your phone to use this theme. You can download SmartLauncher from here: https://play.google.com/store/apps/details?id=ginlemon.flowerfree
To use it, open Smart Launcher, enter in the preferences then select "theme".