Thanks, William I'm not writing citation. I am studying a text, and it has citations. To delete them all, generates friction, while to let them all be, generates distraction. So with the help of Ihor (and chatgpt) I have added this code to my init file, so they are shadowed: (defun yant/apply-custom-faces ()   (add-to-list 'org-font-lock-extra-keywords '("(\\([A-Z][a-zA-Z]*[^)]*[0-9]\\{4\\}[^)]*\\))" . (0 'shadow prepend)) 'append)) (add-hook 'org-font-lock-set-keywords-hook #'yant/apply-custom-faces) About citations: A time ago I learned to use org-ref, but my PC is not very powerful, so Emacs turned to be too slow. Then I stopped working with citations. By now I am adding bibtex properties to my headlines, so in the future I can use org-bibtex and probably I will learn about citation with your tutorials: https://www.miskatonic.org/2024/01/08/org-citations-basic/ Best regards On 14/02/2024 0:33, William Denton wrote: > On Sunday, February 11th, 2024 at 08:57, Ypo wrote: > >> Could it be possible to change the color of words between parentheses? >> >> For example, in: >> >> "mejorar su bienestar psicológico (Cronin et al., 2012; Molero, Fuster, Jetten y Moriano, 2011; Outten, Schmitt, García y Branscombe, 2009; Pérez-Garín et al., 2016)." > For citations in brackets, another approach might be to use Org's citation system with the CSL export processor, and then use András Simonyi's org-cite-csl-activate and customize the face: > > https://github.com/andras-simonyi/org-cite-csl-activate > > That might involve changing your whole citation process, which is a big step, but citations are on my mind so I thought I'd mention it. > > Bill > > -- > William Denton > https://www.miskatonic.org/ > Librarian, artist and licensed private investigator. > Toronto, Canada > > >> >> >> Best regards