Is it possible to set Supernova app in dark mode?

Yes, to do so: 1. Head to Settings → Profile to find the new section User interface theme. 2. Choose a theme preset (3 light and 4 dark options), or choose System preference to sync the app appearance with your device settings. 3. Optionally, further customize your app by choosing a custom main background color or accent color. 4. Adjust contrast levels with the slider to improve visibility.