It looks like somebody turned the neon light off (UK Blu-ray) >>>
I'm also wondering about the new framing. Take a look at screenshot comparison #1. Notice that there is space between the legs and the lower edge of the image (old edition). That makes sense visually.
In the new edition that space is gone.
Somebody posted some screenshot comparisons over at the bluray-disc.de forum >>>
Optimum Home Entertainment UK (VC-1) vs Studiocanal UK (AVC)