Change display font

I’m far from blind but I definitely keep the resolution on my screen lower (so things appear larger) than other folks around me do.

Occasionally, I get mail from someone who is very committed to the “look” of their HTML mail and the font is unreadably small. I can’t seem to find a way in the interface to enlarge the text, or display it unformatted.

Is there a setting that I’m missing?

Could I address this with a theme?

Or should I create a feature request?

Probably a feature request. Personally, I think we need to revisit how emails are “themed”.