How to enable custom themes *only* for dark mode, and don't apply any theme in light mode?

[pyinto]

I'm using Stylus themes on various sites, but the thing is, I use those themes only in dark mode. For light mode, I would prefer to use the native page with no CSS customizations. Any ideas on how to achieve that? In the settings, I can only set a custom flavor for dark/light mode, but there is no option to disable it at all.
Appreciate your help!

[tophf]

1. Open the style in the editor -> Style settings panel -> [x] Dark
2. Open Stylus options -> set the dark mode

[pyinto]

Oh, great, I didn't see that! The only thing is that I will have to go and do that on all my themes :D Hope it won't reset after the update. Thank you for the swift answer anyway!