I was just thinking blue-tinted glass over the red letters… red and blue = purple!

Eventide could sell replacement displays with different colors, assuming they would be user-friendly to replace. There’s a few of these on eBay for the EMU Proteus 2000 synths. Something like that. As a cheaper alternative, I was hoping someone would recommend some kind of removable tape I could put on top of the display rather than take the pedal to pieces (consequently voiding the warranty).

My studio monitors have an exceptionally bright, BLUE, light that I covered with a thin strip of red painters tape. I would think a trip to Home Depot would result in something that would do the trick. 😉 Actually, an art supply store would probably be a better option.