I see comments like this a lot actually and I'm curious, if the client is manipulating the intended style and layout of the site, do you really think it's the responsibility of the website owner ?
Otherwise I'm confused why you mention it.
Otherwise I'm confused why you mention it.
I think it's fair enough to complain about.
So this isn’t something the user is doing to manipulate the style and layout: their browser is saying “hey, fyi, this user’s local system biases to dark mode” and the site is choosing to respond by styling in a way that breaks diagram visibility.