The issue is that the service drill and ceremonies manuals do not specifically state that a color guard must be covered (wear their headgear: hats, helmets, or berets) all the time when presenting the colors. In this article, I go over the standards of being covered and when we can remove the cover.
The Uniform and Presenting the Colors
Over the years, I have centered on educating about the color guard because there is so much myth surrounding presenting the colors.