Apparently it isn't a thing anymore. But it was a pretty nice QoL thing that if you earned a promotion, the bits of your uniform (That you are forced to wear) was changed to an aspect of your choice. I get that there is a way to change them IG now, but in all of my time in V6, I have seen the thing that changes your aspect once.
It was always a nice little gift. It'd be cool to see it returned.
Especially for Balladeers, whose promotion loot is like... worse than 90% of static loot if you aren't a bard or wearing plate.
The aspect changing thing should become way more common shortly.