How comes this isn't obvious to someone they should just respect the OS/browser settings and use the color scheme the user chose?
I prefer black on white (and dream of a eInk-only laptop and a perfectly lo-fi UI with no unnecessary elements/decorations/effects) because that feels more ADHD-friendly to me. Dark modes look cool and make sense when you work in the dark, as long as you set the text font color to grey rather than bright white/green/whatever. The user should choose, using a single system-wide switch.
I prefer black on white (and dream of a eInk-only laptop and a perfectly lo-fi UI with no unnecessary elements/decorations/effects) because that feels more ADHD-friendly to me. Dark modes look cool and make sense when you work in the dark, as long as you set the text font color to grey rather than bright white/green/whatever. The user should choose, using a single system-wide switch.