When using the Breeze Dark theme in Plasma 5.2 Kmail fails to display most mails.
I'm attaching the mail source and a Screenshot.
Created attachment 91332 [details]
Screnshot of Kmail failing to render the mail message
Created attachment 91333 [details]
please explain what is not ok for you.
I believe the problem is that the email body appears grey (from the color palette 'text' color), on a white background (which is not the pallette expected dark background).
Cannot reproduce anymore. I guess this is fixed. Closing.