Thanks for your help. At the moment I have in my init.el  (in fact my
user.el because I am using scimax with -q -l options):

(require 'ox-latex)
(setq org-src-fontify-natively t)
(setq org-highlight-latex-and-related '(latex))
(setq org-highlight-latex-and-related '(latex script entities))

But nothing works for highlighting latex.

Best wishes,


Jo.

2018-05-09 13:21 GMT+02:00 Eric S Fraga <esflists@gmail.com>:

> On Wednesday,  9 May 2018 at 11:59, Nicolas Goaziou wrote:
> > Eric S Fraga <esflists@gmail.com> writes:
> >
> >> Okay.  But I have this variable set, to (latex), and it does
> >> nothing.  The regex remains nil.  Is there some other configuration
> >> setting that we have to set to get LaTeX snippets etc. highlighted?
> >
> > You may need to reload Org mode in the current buffer.
>
> But I have this set from the start and also tried with
> custom-set-variable... and I have tried reloading org.  All to no
> avail.
>
> The highlighting works if I try emacs -Q so obviously something else is
> affecting this setting.  Ummmm time to dive into my customization of
> org.  Any hints as to what could be affecting the actual highlighting
> would be welcome, of course!
>
> thanks,
> eric
>
> --
> Eric S Fraga via Emacs 27.0.50, Org release_9.1.11-620-ga548e4
>