Lithophane Display Box

I have been printing various size Lithophanes and wanted to be able to print boxes to display them in. I thought a parametric design would be useful, since they are different sizes, so I downloaded OpenSCAD and created this box. This is my first attempt at creating something with OpenSCAD, so comments on it would be welcome.

I have included the file for the lithophane pictured in case anyone would like it.

Lighting
----------

I use USB powered COB LED light strings to illuminate my strings which I stick around the inside back of the box. This provides very uniform light for the lithophane. I solder a usb cord which has a on/off button and dimming functions which provides a nice finished look. Here are the links to what I have been using:

https://www.amazon.com/gp/product/B08HD3ZSQV
https://www.amazon.com/gp/product/B09LCTB6LW

Update - March 19, 2022
---------------------------------
I have uploaded an enhanced scad file that allows you to specify which wall of