Rules like 'elevated surfaces get lighter in dark mode' are good guides but do not hold in the real world, where a darker keyboard can sit on a lighter table.

maybe the object that you're elevating is darker than the background so the rule doesn't really make sense in the real world uh you can have uh a darker keyboard on a lighter table so I think those rules are really good to guide you just for you to not create something that makes absolutely no sense to anyone