Semi-related tid-bit: You'd be shocked how many theatrical lighting designers over the age of 45 are color blind. Never used to be a workplace issue since there was only a limited number of gels to place over lights and even then they were all numbered / catalog.
With LEDs being able to project (nearly) any color the old-guard are facing some challenges.
With LEDs being able to project (nearly) any color the old-guard are facing some challenges.