Hi. This is a simple case designed for the Reviung34 keyboard, designed by gtips, found on GitHub (files found here: https://github.com/gtips/reviung/tree/master/reviung34)
It's designed to sit flush to the bottom of the PCB, so I guess it's a low-pro style case, and is really only meant to be built with transparent filament to showcase the epicly gnar RGB that was incorporated into the PCB design.

Pretty straight forward, there's one file, it fits on an Ender 3 bed, just have to rotate it to a 45ish degree angle so it fits, slice, save, and hit print..... bingo bango, you're cool.

(this is a work in progress, so hopefully it works. Good Luck!)

Edit: Missed the outer two mounting holes, I printed the first version, and it worked pretty well. Should be good now!