Colorblind?
Jimi Tenor making the backdrop for his show at Sonar 98

The idea is that as the lights on stage change colors, different patterns appear on the canvas. The idea came from the color vision test, in which normal observers will see one series of numbers while color deficient observers would either see no number at all or a different number.

The figures seen on the backdrop include a star and a JT logo. The backdrop was made for Jimi's Tenorlandia show at Sonar Festival, Barcelona, July 1998, where he entered the stage riding a white horse.