I’ve noticed that there are multiple translations available on Transifex for the Spanish language, each one corresponding to a spanish-speaking country dialect of it (es_ES, es_AR, …), and another one more general (es).
However, when specifying the site locale on settings, I can’t select any country-specific variant, just “Spanish”.
How does it work? Is it possible to specify the country of the Spanish variant or is it automatic based on the broswer locale?