Unified Arkade (updated 2019/10/27)
Credit to huntsman for his awesome arkade720 theme on which this is built upon. I've expanded support to 81 out of the 84 supported systems, created new system icons and added new system backgrounds snapped from launchbox Unified theme videos.
UPDATE 2019/10/27 - Unified Arkade version 2.0.
This new version now features support for 109 systems including many not seen on any other themes. The much bigger file size is due to the new addition of a curated set of some of my favourite 8/16 bit music with each system having a unique track. Enjoy.
Submitted by Unified chalotron - firstname.lastname@example.org