Pinocchio had a similar - they used the cels as reference, and "flattened" a lot of the moody lighting effects, like the candlelight in Gepetto's workshop. The 1999 DVD was the last time they ever looked anything near accurate.
Have the restoration team never seen the color test wedges from Snow White? The ones that have been included on every special edition on LD, DVD and BD for the last 20 years? If you look at them, it will be plainly obvious that the cels don't tell the whole story.