The Superman-centered CGI in 2017 Justice League theatrical cut continue to be fascinating. Henry Cavill's Superman is one of the movie's standout elements in this regard, as he more than any other character embodies both the CGI blunders of the theatrical cut and the vast improvements later seen in the Snyder Cut.
Cavill's mustache from Cavill himself even ing in), until the Snyder Cut came along with a Superman makeover of its own.
With Superman returning to life after his death in Superman coming back in black as part of his journey, and he found a way to work around it.
Through specific lighting techniques and trickery, Snyder was able to film Cavill's present day scenes in the movie in such a way that the suit could be digitally recolored in post-production. Once the green light for the Snyder Cut was given, the change was made, and there isn't the slightest indication in the finished film that Cavill's suit was ever a different color. Furthermore, Snyder also repurposed a couple of Superman shots from Justice League's epilogue and, while more readily recognizable to anyone able to recall the scenes they're drawn from, their inclusion isn't jarring enough to be a distraction from the scenes they're featured in.
The story of the Snyder Cut is one that will remain a legend among superhero movies. While the differences between the theatrical version and the Snyder Cut are huge, there's perhaps no bigger irony than the fact of Superman being the subject of both the biggest CGI faux pas of the former and a very impressive digital wardrobe swap in Zack Snyder's Justice League. As interest in Snyder's unmade sequels to the film is already boosted following in the Snyder Cut of Justice League, and the "Restore the Snyderverse" campaign continues, Superman's black suit might end up with a double meaning in how it relates to both his comic book and cinematic resurrections.