Themes are not working in Big Box

[Jayinem]

I downloaded Coverbox Remastered, put that main folder in the root of themes, I also tried making a copy of default and overwriting the files from Coverbox Remastered, tried selecting both ways in Big Box and nothing changes just black screen behind the games. I also rebooted Big Box. Anything I'm missing? 

My folder layout Launchbox/themes/Coverbox Remastered 

 

[Jayinem]

Maybe I'm just dumb does a theme mean the background will change or just the layout of the games?