I wanted a case that was a bit more beautiful than just a modified GBA cart. The pseudo-lightpipes are for the Pro 1.4a version with RGB LEDs and leave only 0.2 mm of plastic as a semi-translucent panel at the surface. They transmit light OK as is, but filling them with something transparent might improve them. Nothing else in the footprint has changed, so this will fit the Pro 1.4; you'll just want to print the top without lightpipes in something a bit more translucent, as the LED placement changed in revision a.
While this should fit the regular 1.4 inside, I don't think the button would line up and I'm not sure you'd be able to rig a way to get the usb to connect.
Prints with the top and bottom of the case against the bed, so flex your textured bed or use a fun first layer pattern!
The author hasn't provided the model origin yet.