Hello, this theme is very much a work in progress, I started it over a weekend during school and therefore not many systems have been themed, More systems can be added upon request. I was only able to theme the following systems,
Game Boy Color
Game Boy Advance
A picture is added inside the zip file that contains the theme, I could not figure out how to take screenshots in the Retropie software and had to take them from my phone, the picture size was more that the upload restriction of 2 MB. So it is included with the theme.