In 2016 we used those on our bot. We used the FastLED library on an arduino to send them the signals. But we also sent the arduino PWM signals to tell the arduino what color to display. The driver station has a way to get your alliance color and we sent that to the arduino for that purpose. But mainly we had a rainbow animation on them which is
this video. If you want to know more DM me and I'll put you in contact with the person who wrote the code and developed the system for it.
