First of all, this is an amazing project. Simple to use yet powerful. Thank you. 🍺

Is your feature request related to a problem? Please describe.
As a developer myself, I often spend my time in the terminal, IDE, etc where everything is dark (by choice).
Then when I end up in this UI, it's just dazzling, especially during the small hours.

Describe the solution you'd like
It would be nice to have either a toggle or ENV variable to switch UI to dark.
The possibility to override the default style would also work for many.

Describe alternatives you've considered
Using client-side plugins like Tampermonkey.
So far this extension works great, but it's a struggle since it affects all websites, so it needs to be toggled on and off.

Additional context