Back to eyebrows: would you believe they actually acknowledge this on starwars.com on the episode page?!
“Although the final cut of Return Of The Jedi has an eyebrow-less unhelmeted Darth Vader, to better read in animation, the animation model has the dark brow visible through the cracked helmet.”!
Somebody appears to be using the term “final cut” in the Blade Runner sense.
#Hidalgo