A green glow would have been nice, but considering Aegis is Fed/KDF tech, it's easy to see why Rommies don't have a unique glow with it. The same reason Maco, Honor Guard, and the Romulan sets display the appearances they do on every ship.
Well, the same could be said of mounting a Reman set on a KDF or Fed, they should glow their respective colour, not the "Romulan" colour.
And I wish I could get my at least one of my Excelsiors to have a nice maroon/deep red sinister glow, thought would outright rock!
butcher suspect, "What'd you hit me with?"
Temperance Brennan, "A building"
I would second this, but in following the games logic, since the Roms are not a "True" faction and end up aligned either Fed or KDF, it makes sense that the colors would reflect that. But yes, green would look awesome.