One of the more significant changes in the Marvel 1980s was the introduction of Spider-Man’s black costume. This costume first appeared in Secret Wars #8 and would later evolve into Spider-Man’s archnemesis Venom through the 1990s.
Interestingly, the inspiration behind the new costume actually came from a fan, Randy Schueller.
Here’s Schueller original idea:
“I thought it would be cool if Spidey needed to upgrade his powers and his look, so I came up with this idea that Reed Richards had made a new costume for Spidey using the same unstable molecules that the FF costumes are made of. The unstable molecules would flow into Peter's pores and allow him to cling to walls better. I think my original idea was to increase his sticking power by 25% or something like that.”
“Anyway, I saw the new suit as a stealth version of the original costume - jet black so he could blend in with the shadows. At best, all you could see of him was the blood red spider emblem, emblazoned on his chest. (Yeah, in my design the spider was red, not white. I also gave him underarm webbing like in the original Ditko design.)”
That red costume design was also part of the original sketches of the new costume.
And seeing the success of the black costume through Venom and in Spider-Man 3, it sucks that Randy didn’t get any kind of acknowledgement either in the comic book or in the movie.
Well, if it helps: “Thanks Randy!”
See here for the full story and Randy Schueller’s point of view of what happened.