The most basic one, HueQuantize, exaggerates both red and green and moves them further to the extremes of thecolorspectrum, away from the indistinguishable middle ground where colorblind users get stuck.
What's more interesting is what they revealed about their own product, including built-in microphone that can detect the direction of audio, and the availability of the glowing ball to developers to add immersion -- it can be lit with any color in thespectrum.