Common Issue with dark mode

Hi there,

I’ve seen a few other tickets regarding dark mode.

You can see in this desktop screenshot, all my settings look great from the email designer. I made all the backgrounds black.
https://www.dropbox.com/s/hn40vq219askiaz/desktop.jpg?dl=0

Now when I go to my iPhone 11, which is set to dark mode, you can see everything changed to white:
https://www.dropbox.com/s/rt3rm6p9erai853/iphone-dark-mode.jpeg?dl=0

And when I change my iPhone to light mode, everything changes again. But this is what it should look like on iPhone and desktop, regardless of the light/dark mode.
https://www.dropbox.com/s/xj5x8q9w1eg62z9/iphone-light-mode.jpeg?dl=0

How do you disable the email changing from dark/light mode?

I imagine lots of people are encountering this issue.

Thanks.