NCAA Black Bean Bags?

Was watching the Arizona State/Colorado game on TBS and I noticed all of the officials had black bean bags. Is this an experiment?

Gad, if it was I hope it has now become a failed experiment!
That is absolutely ridiculous to use that color on any field.

Maybe it is just the TV but the ones in the Army - Texas A & M look black as well.

I can't remember what game I was watching, but I saw some officials with red or dark orange ones today too

They'll have to pry my white bean bag from my "cold, dead hands!"😃