So, the customization policy says this about light and dark mode:

Wikis may not use the same theme for light mode and dark mode. The light theme needs to be a properly light theme and the dark theme needs to be properly dark. This is for usability reasons: Fandom automatically defines the text color based on the chosen article background color, with the idea being that a light theme has dark text on a lighter background, and dark theme has light text on a darker background.

However, the Riordan Wiki has not been following this. Their light and dark mode is the exact same. This isn’t the fault of the admins or mods, apparently it’s a collaboration with Disney+. But I don’t think it’s fair to light mode users, and this should be fixed.