So I built my 1st AR. I color filled the safety selector. I did RED for fire and WHITE for safe. I am having a HUGE battle with my brother-in-law and he is insisting the SAFE should be green. I've only seen white, and in my newby brain GREEN means GO and I think THAT is confusing. I did online searches and only see white. He starts saying all his "shooting professional friends" agree that it should be green. Help me decide thanks.