The "System" option for Dark/Light mode is not consistent with the system

That's super odd

yeah right ? it was not like this a month ago or so. I noticed this behavior recently

but actually I realise that I am facing this on other websites, looking closer...

So it may comes from something on my browser

I am facing the same problem on Perplexity dashboard for instance, but weirdly not on ChatGPT

Any clue welcome if you think about something

I honestly don't know how it works under the hood. Maybe dark mode is forced by Arc here?

Hey Bastien, it may be because you use a browser extension like "Dark Reader". Is that the case?

it is not 😬

I use Arc

I have a bunch of extensions

But I can't find the one causing this problem

Okay I think I know what it is

okay I did not know that.

i don't understand why this setting has to erase system mode though

i don’t know if its me does not knowing how to manage this feature or if it is badly designed from Arc

That's because most (if not all) browsers have a CSS variable "telling" websites what the current system setting is regarding theme, between light or dark. But, Arc allows you to create Spaces and force a specific theme mode on a space, which is actually a useful feature. I'm pretty sure they had Developers in mind when they did that, as Devs usually prefer Dark mode everywhere, so they'd create Arc Spaces with explicitly-forced dark mode.
Other people who don't want that usually leave it to "Automatic" upon creating spaces, or some people hate dark mode altogether so it's also a useful feature to be able to force light mode no matter where you are, which overrides the system preference in the browser

Glad we found the root cause though 😀

Good to know thanks!