Ok, I am happy to submit a patch. It would be my first, so I will have to find time to make the commit properly.

On Wed, Sep 11, 2024 at 1:59 AM Ihor Radchenko <yantar92@posteo.net> wrote:

Benjamin McMillan <mcmillanbb@gmail.com> writes:

> At some point in the last few months, org mode stopped fontifying my
> latex export blocks. However, an older version of emacs on my computer
> still does fontify.
> (The difference is seen even opening emacs with the -q flag)
> It seems that there was a change to the function
> org-fontify-meta-lines-and-blocks-1 in org.el, specifically at the
> conditional that checks org-src-fontify-natively.
> As the comment there explains, the intention is to only fontify src
> blocks, but I don't see any option exposed to enable fontififcation of
> export blocks, which is a fairly crucial feature to my workflow.
>
> I think fontification of export blocks should follow that of src blocks,
> or a separate option should be made. (Or, I may be missing some already
> existing solution!)
>
> For what it is worth, I can get the desired behavior by modifying the
> code mentioned above to include "export", as in the following:
> (and org-src-fontify-natively
>     ;; Technically, according to
>     ;; `org-src-fontify-natively' docstring, we should
>     ;; only fontify src blocks.  However, it is common
>     ;; to use undocumented fontification of example
>     ;; blocks with undocumented language specifier.
>     ;; Keep this undocumented feature for user
>     ;; convenience.
>     (member block-type '("src" "example" "export")))

Since we already do it for example blocks, I see not why we should not
for export blocks.

Would you be interested to submit a patch with your modification?
See https://orgmode.org/worg/org-contribute.html#first-patch

--
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>