Hi,

I've managed to get some free time to remake this list, following Maxim
Nikulin's suggestion
(https://list.orgmode.org/orgmode/taeb0a$r62$1@ciao.gmane.io/). It's no
longer an anonymous list and I agree it now has a more robust structure
with name fields. I have also added the `:lang-name' property, whose
value is the actual language name. For example:

("el-polyton" . (:babel "polutonikogreek" :polyglossia "greek"
:polyglossia-variant "polytonic" :lang-name "Polytonic Greek"))

Thanks to this I think the code for org-latex-guess-babel-language,
org-latex-guess-polyglossia-language and org-latex--format-spec is also
simpler.

Best regards,

Juan Manuel