The Blu-ray is modified for the text on screen when it says
Add info:
Subjecte…
(deletes the word Subjecte before “SEN”).
I think I re-made this using the other text of the word “Subjecte” for my release, and re-timed it. So one could do that, or use my version. Though I can’t seem to find the raw file, so it’s a 720p encode that exists now.
As for the 16mm transfer, it does have color. Just a matter of how much can be recovered. Someone suggested that it varies throughout.
Also, the blu-ray has altered text color for some of the on-screen display stuff. But that can be adjusted of course.