I mentioned this during the Beta test so I’ll mention it again for anyone who wasn’t involved. Discourse allows for custom themes so you can customize how it looks for you. There are a large number of themes you can look at here:
If there are themes you are interested in trying out, let me know and I will install them so that you can then select them in your user preferences. Beta testing showed that some themes were not fully compatible and some features (e.g. Chat) might be missing or not work at correctly, but there’s no harm in trying them out, because you can always change back to default.