> (if (>= emacs-major-version 27)
> (defface foo...) ; for Emacs 27 and later
> (defface foo...) ; for Emacs 26 and older
This results in lots of code duplication. Maybe it's better to:
(defface foo...)
(when (>= emacs-major-version 27)
(set-face-attribute foo... :extend t))
I'm not elisp expert by any means.
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