Fluctuation in the new navigation?

I just saw this:

But then it turned into this:

Then it again turned to the first one, and the cycle repeated. It's been happening for some minutes now. Is it a bug?

obviously no....

Does it do that even without your mouse there?

How will I know it does that if the mouse isn't there?

seems like you have gone in and out of dark mode. What are you setting set to?

By knowing where your mouse cursor is.  Since you control the mouse -
then you know where the cursor is.
Other things could be relevant too -
like whether you're using a chess.com browser extension.
But JD Cannon is there now. 

actually this did actually happen but I thought chess.com team was doing some testing..

Nope, I haven't, since I don't know where it is. Can you tell me in which category in my settings I can find it?

I thought that too

in live chess

Ok thx. My dark mode isn't on. That happened everywhere, not only in live chess. It's fixed now though, I think