You're right, I moved it near the top of my init file, and it works


Solved!

Thanks

On 30/03/2024 12:43, yantar92 at posteo.net wrote:
> Kepa<gnu.cognition199@slmails.com>  writes:
>
>> I have added a custom face, but it doesn't work unless I do "M-x
>> org-mode-restart".
>>
>> The custom face:
>>
>> (defun yant/apply-custom-faces ()
>>     (add-to-list 'org-font-lock-extra-keywords
>> '("(\\([^)]*?[A-Z]+[^)]+?[0-9]\\{3,4\\}[^)]*\\))" . (0 'shadow prepend))
>> 'append))
>>
>> (add-hook 'org-font-lock-set-keywords-hook #'yant/apply-custom-faces)
>>
>> I have tried saving the desktop manually, but it doesn't take effect, I
>> have to reload org-mode each session.
> I suspect that the part of your config defining the hook is loaded too
> late. Try to reproduce the problem starting from emacs -Q, as described
> inhttps://orgmode.org/manual/Feedback.html#Feedback
>