Is this something new, Beta?

Chrome 75 (Brave browser build) Windows 10.

It actually looks cool though. Keep that change. I refreshed the page to see if this is some web extension thing, but it remained the same. I only have Google Translate as a web extension. Looks like a Beta-ish bug, am i the only one facing this "issue"?

I noticed this too, figured it was on purpose

This isn't an issue, it's a new feature

How does it look like in Platinum membership? Same gold color and plat crown?

yellow for me

Yellow for me too, and cyan for normal members I think

I think it's yellow for oneself.
Cyan one might be for friends.
Not sure what the black one is though, I saw one or two names in black (very dark gray to be more precise).

Did you confuse them with engines?

or maybe moderators xD

Yeah, prolly the color of the pawn is now the color of the username

non friends seem to be of the previous color we all saw.. whitish gray. Friends are of cyan. Self=yellow.

You mean the black names?
No, I saw @kbkhan91's name in black. Funny actually. I thought I was his friend, but actually we weren't friends and he holds a 1-0 score against me. I wonder if that has anything to do with him being shown in black color however...

I use Dark Mode so he was like... the next Darth Vader of chess in my chat

LOL

I think it's self-regulated, the color of the username.

Mine appears to be light grey. Everyone else's, including friends, are black.

cyan for friends

This is on purpose.   Its part of a larger chat upgrade.