Unless I'm mistaken, those are not really multi-color in the manner that you want, but each element has its own color. That is, using the style of VFD on the empeg, each pixel could only ever be one color. So if you wanted the Track Name, Artist, and Album to be red, green, and blue on the Track Info mode, then when you had up a full-screen visual, it would be red on the top, blue in the middle, and green on the bottom, kind of like those filters that people used to put in front of their black-and-white TVs in the fifties that made the top part of the screen blue for the sky and the bottom green for grass.

On the off chance that I am mistaken (), how would you figure out which parts need to be blue and which parts need to be green, etc? I think that it would be nearly impossible. But, then, feel free to prove me wrong on both points.