Subject: Re: bug#37774: 27.0.50; new :extend attribute broke visuals of all themes and other packages

From: martin rudalics <[email-masked]>
Date: Wed, 6 Nov 2019 18:06:04 +0100

One surprising effect with recent master is that with emacs -Q
evaluating

(custom-set-faces
  '(font-lock-comment-face ((((class color) (background light)) (:background "Beige" :foreground "Black")))))

makes the comment background extend to the end of the window.  This
means that unless I explicitly supply :extend nil, the behavior is as
with Emacs 26.  Is that intended?

martin