What if this only displayed one color instead? It would be much more secure against snooping, but will still provide a large portion of the benefit. Sure, the n

What if this only displayed one color instead? It would be much more secure against snooping, but will still provide a large portion of the benefit. Sure, the number of false collisions would go up a ton, but the odds of trying to type the same thing and accidentally typing do different things that collide would be relatively small.