Pink Kryptonite is a type of Kryptonite that seemingly turns Kryptonians more feminine or queer. This type of Kryptonite only made one appearance in comics and was used as a satire of the plots of Silver Age comic stories featuring some strange new form of Kryptonite.
In an animated short, True Colors, from the animated series Justice League Action, its effect was changed to switch the gender of the Kryptonian under its effects, due to the more family-friendly nature of the show.
The Superman fan wiki says
So, boo :(
I mean, at least it goes from gay powers to trans
The scene in Action is pretty great.
After he goes through a sailor moon change, he says ‘I can work with this’ and continues the fight.
I use he because the voice doesnt change and since its undone shortly after with no lingering remark I don’t think it matters to Supes either way.