The file has the pupil of the eye as a separate object if you have multiple AMS and want to print it in black. I just print it in the same navy blue as the exterior of the box.

This is a double sided box so both sides have the mirror image. My model has 3 layers (0.2mm) of color, followed by 2 more layers of just white to act as light filter otherwise the blues can get too thick that not enough light comes through.