Hey! So we used to invert images in the dark mode to make them more readable, but disabled it after some negative feedback. In this case, it’d cause the “DAMNATION” image to render properly since the words would be black, but would cause the image with the field / grass to be inverted and super ugly.
I think that it’s probably best to leave the behavior as-is. Mailspring does it’s best to invert solid colors in the email so they’re not white and painful to read against dark mode, but doesn’t alter the color of static images in the message, so things like logos and pictures of people are still the “right colors”.
This does produce some bad results, like this message from Mint:
Maybe we can make this an option? Or we could stop inverting emails at all - though it’d cause all HTML emails to render with white backgrounds, which would be a bit of a bummer…
(Origially posted by bengotow on GitHub.)