her in vt fl. orange isnt required to be worn, its suggested that it should. BUT you do have a good point on being color blind, i do beleive that when most laws pertaining to ones safty are made, there are a whole lot of things get missed. but that is just my thought/opinion. Im not color blind but have thought about those who are, lawmkers probabley over looked them. Again good point. jerseyhunter has point also, I guess in a sense there will always be glitches in it.