Hello, thank you so much for your feedback, I'm happy to hear you're satisfied with the features. I've written down your suggestions and I'll try to include them in the next coming version.

Best regards,
Max

Edit:
The update including a minimalist UI and dark mode has been published.
If the extension isn't updated automatically, feel free to uninstall/reinstall it (note that uninstalling it will remove the presets you saved).