Could you make a machine look like this?

I was playing around with some inversion of photos and thought this looked cool, I wanted to share it!

Is there anything you could coat the inside of the shield with so that it wouldn’t matter what the color is?

The attached photo was taken at the Maker Fair in Queens.

Errrr . . . .No   :-\

I’m digging the blue!

Black paint…

The enclosure must block blue light, or else the resin would all solidify from ambient light.  Some sort of blue-reflective coating might work, but it would be a lot of effort just for cosmetics.