Frekvens No-Gel Light Filter Frame

I added a 1mm layer to The Mad Martigan's Frame...I figured I could just print it in the color I wanted without needing a gel and it works better than expected to slightly tone down the brightness but also add a splash of color.

Photos show side by side difference (at least until I print another one for the second LED cube).

Your infill pattern choice could also add an interesting look.