The Technicolor Holocaust is an event that happened within the first month of the creation of OC. Zak_Inc had requested a .gif of a "D:" face moving around in a circle and switching hues. Phrossbite made it, and problems started soon after. People started using the "Technicolor Surprise" as a response to every post, and it soon became spam. Many members would spam the picture many times (some as many as 100 times) in their posts. From that point on, it was made against the rules to use that picture in anything. In recent times, bitter feelings towards it have started to die down, but users are still wary of it.
Though unofficial, Strontium has attempted to return Colored Text and the Technicolor holocaust: