What's Neyo's helmet supposed to be then, if PHase 1 is AOTC style, and Phase 2 is ROTS style?

Neyo's is way out there... Then there's the Marine's uniforms. The "Scout" armor from Kashyyyk...
I think the armor's a constantly evolving thing in the war, ultimately. New stuff developed for new reasons. Some legions in the outer rim could be fighting up till the end in the Phase 1 simply because they don't get resupplied as fast or often. You never know, ya know?
The weirdest thing, to me anyway, was how fast they dropped the color-coding for rank. That went out the window lickity split and they've never really explained how rank's identified. I've always assumed it's something that can be seen via the helmet only then, replacing rank because maybe droids are taught to pick off the colored armor first if possible. Very odd though how that went by the wayside fast.