Suggestion Dark mode CSS please

I raised the issue of switching between light and dark mode before and @asti have me a good tip (Thanks!).

I've been using it, going through our site and there are a lot - a lot - of individual CSS changes needed to be made and it's very slow and laborious process identifying the CSS of each element, then building a Dark Mode (.mode--alt--b class) version for each element.

It would be really, really helpful if wpDiscuz could develop/publishing a Dark Mode CSS sheet. Even if a few elements weren't a perfect shade for everyone, at least people would have a starting point - know what they need to change.

Possible?