Change my username color?

[Qusigh]

Idk how to change the color and font of my username in the new chatroom, users told me to go to preferences but I didn't find an option to change the username color ,only color options I got are the ones for the texts in the typing bar

 

[Stanthropical]

There's only an option for default (visible to others, red/blue/other, based on gender) or random.