I reworked the lobby for my runner game. The whole UI is mainly black and white, which is why I thought black/white would fit well. The flying obstacles outside all come from different playable maps, I wanted it to give some “galaxy” feel.
There’s definitely some issues with contrast (e.g. the text is not easily readable - it should have a text stroke or something to make it stand out from the white it’s over the top of), and it’s all very bright.
Especially if your UI is black & white themed, wouldn’t that make it a bit harder to see what’s the UI vs. what’s the lobby?
It isn’t bad, but I think there are some changes you could make to make it clearer and easier to understand, since there’s a lot going on!