Is It Possible to Render the News Letters in a Dark Mode?

Dark mode uses all standard elements in the mac operating system except for the engine that renders the email message. Most news letters like those typically have some form of a white background added to them, so i would assume that the rendering mechanism would have to support that. So it's probly not an easy problem to solve. And if you go into the apstorng update things, they announceda dark mode, and they're release notes basically just say, 's only one new feature, but we think it is pretty cool'