Approved, my arse. Savini never officially endorsed it and while DP Frank Prinzi did talk to the tech guys beforehand, he never saw the final product, let alone signed off on it. For Twilight Time to say it was an "approved" transfer is deceitful.
http://www.cinemalowdown.com/2012/11/cinema-lowdown-exclusive.html
FRANK PRINZI: I have to let you know that I haven't seen the transfer on Blu-ray, on a good screen, yet. I just saw [a] quick clip on the internet and what I saw looked bad. I was consulted verbally a couple of years back but was never given a "first draft" copy of the transfer to give my true feedback. It went from words to visuals. The range of interpretation is limitless. The words “cool” or “darker” can be taken in so many ways that without a visual marker to refer to, one can go in any direction. From what I hear the direction taken did not bring pleasing results to many.