So I found out that I can change the icon color by editing the html (more in comments)

lol

You also have to edit the squares individually, which means you can make it so there’s more than one color.

H o w ?

I n s p e c t e l e m e n t

W T F I s I n s P E c t l e m e n t

Ctrl+Shift+I

Yeah, no - that doesn't work. The receiving script on the server rejects any submission that contains more than one color. Here's the error you'll get if you do manage to submit with more than one color:

{"error":"Custom icons can only have 1 color specified"}

Nice try. What is being described here will only be visible to you when you edit the source - as soon as you refresh the page, it's gone.

That’s exactly what i did, I edited the squares individually on my profile, I wasn’t trying to make it save.

And yeah I tried the same thing, I got the same error.