To switch to a dark theme in Marvin:
Click the hamburger icon (β°) in the bottom-left corner
Select Settings.
Navigate to the Appearance tab/section.
Under Theme, select one of the dark theme options:
Dusk
Dark
Silver
Your selected theme will be applied immediately.
Additional Settings - Automatic Theme Switching
Marvin also offers options to switch themes automatically:
Use system setting for light/dark theme: Marvin will follow your computer's or device's system-wide theme setting (light or dark).
Show dark theme after sunset: Marvin will automatically switch to your selected dark theme each day after sunset, based on your location.