i went ahead and made my custom PSX theme
https://www.mediafire.com/file/964et8apmle92st/OlRoom_PSX.zip/fileCheck out what i added:
- CRT shader on the screen
- subtle color glow on the whole room
- support for boxart (flat, 3D and CD/cart)
All those can be disabled on the layout options.
To use this glow thing you'll have to modify the bloomMultipass shader on your shader module, instructions are on the layout.nut file, right on top.
If you know how, make a parameter that can be set on the layout instead. I tried making some sort of "alphaValue" parameter to avoid modifying the actual shader (beyond creating the variable/parameter, duh) but i could not. I don't really get shaders so i did my best.
Of course feel free to replace my ugly enviroment with whatever you want, it's just editing the background you already have same way i did with mine. I kept the screen in the same spot as the original theme (based this on the MegaDrive one) so no coding required for replacing.