I mean the head art director for episode 7 was Doug Chiang, the same guy that did Episode 1.
EDIT: And the other prequels as well I believe.
I guess this shows that the film director is the real head art director, since the same art director that gave us some visual variety in the PT gave us slightly repainted TIEs and X-Wings in the ST.
EDIT: I won’t doublepost again, I had a brain fart.