OLD Marble Flooring (from Hotshotz Panzer on Lodestone image)
OLD Marble Flooring Extra image from FFXIV Housing site.
NEW Marble Flooring after update = Brightness 5.
The marbling effect seems to be more so tied to the lighting for some reason. Where if you have lower lighting the marbling almost becomes invisible. Previously I used a much darker room setting and it still looked nice.
NEW Marble Flooring after update = Brightness 1
It looks so much worse now and you basically can't have lower lighting levels.