توضیحات:

SLT Nightmare is a scaring theme for all seasons (perfect on Halloween!) for your Smart Launcher.

Of course you need Smart Launcher in order yo use it, you can install it from here:
https://play.google.com/store/apps/details?id=ginlemon.flowerfree

To apply this theme, open Smart Launcher → Preferences → Themes, then select Nightmare

Enjoy it :)