I can give black robes in the final scene a shot, but I’m not entirely sold on the symbolism. Are they black because it’s a funeral of sorts, or to imply she’s integrated Ben Solo somehow, or to imply something about the force alignment of her new generation of Jedi?

I feel like the black robes would make most sense in the part of the movie where she’s worried about turning to the dark side, to draw a closer parallel to her vision of Sith Rey - but then you’d lose the white/black duality between her and Ben on Kef Bir and Exegol, which would be a shame.