Hi Ihor,

> I would not be so sure. If the issue is major-mode not doing
> fontification in batch mode, engrave-faces cannot do much.

Try it 😉

All the best,
Timothy

-- 
Timothy (‘tecosaur’/‘TEC’), 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/tec>.