I got bored and went down a rabbit hole looking for more information on the character Graphix (Gwendolyn Snyder), and it did not disappoint!
To quote the Jem Wiki, "Graphix was a snobby, spoiled rich graphic artist. Eric Raymond hired her to design album covers, logos, and other promotional items for The Misfits and The Stingers. She preferred The Stingers, especially Rapture, with whom she would have pulled pranks on both The Misfits and The Holograms. Over time, Graphix would become a roadie for The Stingers, just as Clash was to The Misfits."
From what I can find, she was included in the Jem Bible and was going to be seen in the movie and an episode that would be more than likely at least half focused on her, there was also going to be a doll released between 86-87 but the line she'd be introduced in was cut due to bad sales. Thankfully, a prototype image was released so we could see what she would've looked like in doll form. In 2016 Integrity Toys released their own Graphix doll that finally brought her to life!
I'm having trouble including images but I at least want to show the prototype doll. :)
Edit: The images became static so here's her Jem wiki page!