This would be tremendously useful to me as well. Especially as email clients offer little to no support (looking at you, Gmail) for targeting/styling content specifically in dark mode, it would be great to understand how many of our recipients are viewing emails in this context.
Giving this a little bump! It would be great to have this kind of data and help us optimise our emails. This would also tie in well with this idea: Support Light and Dark Mode for Marketing Emails.
Giving this a bump here as well -- we're looking to figure out how many of our users are in dark mode to target them with different email designs, and would love for this to be implemented.
Also giving this one a bump! Would love to know what percentage of our email list uses dark mode. It could be super important for us and wihtout these stats we are, ironically, in the dark
We need this AND overall email client stats. It's not very helpful to craft a holistic design strategy without knowing what client people view your emails through.
It would be great to be able to see how many recipients from my marketing emails are opening emails with dark mode enabled in order to optimize content for the majority of users.