I think it would be nice if ERT had their own uniforms varying on the role with similar coloration to the hardsuits/armor, for example it being mostly grey/black and having a militaristic vibe to it such as having digital camo like the blueshield uniform or tactical turtleneck.
Engineering would have yellow details on their uniform, security having red, medical having white, commander having blue, and janitor having purple. Maybe with some included protection also, about the same or slightly higher protection values compared to the standard security uniform. The ERT having the same uniforms as the crew just seems kind of out-of-place IMO, so I think them having their own unique uniforms would help with identification.
Another optional detail that I think would be pretty cool is having the name and rank of the ERT member it's spawned on in the description. I dont know if it's possible/hard to code but would probably be a good addition to the uniform. Maybe I'm asking for a bit too much, but if someone can do it, that would be amazing.