I wanted to create a customized LCD panel for my printer, but my OpenSCAD skills are...well, they aren't, so I modeled a replica in Fusion 360 using the original Prusa MK2s LCD cover piece as a design reference. This model isn't meant to be printed as-is, I figured I would just share the blank stl and Fusion 360 source files so that anyone else looking to customize the cover doesn't have to start from scratch.
As far as compatibility is concerned, I made this specifically for an MK2.5, so I can't say for sure if it will work on an MK3. I believe they use the same LCD module (RepRapDiscount Smart Controller), so in theory it should work fine. Since the Fusion 360 source is included in the files section, you can tweak and adjust as needed.
These are the settings recommended by Prusa Research.