On the website and in the app, ckbk supports both Light Mode (dark text on white background) and Dark Mode (light text on dark background).

The app an website will respect your system settings, so if you have Dark Mode set to switch on in the evenings, ckbk will switch its appearance to match.

If you wish to, you can also force ckbk to use Light Mode or Dark Mode at all times, irrespective of your system settings.

To do this, just visit the Appearance section with in ckbk user settings.