Hello, everyone -- but especially hello to the modding and coding wizards

I started a new playthrough and this time I turned on the Spanish subtitles, to check how that was and it... was. I guess. Most of the time the translation is technically fine, but it sounds very stilt or overly prim (as if Flanders was in charge of translating Baldur's Gate 3) and there are some mistakes and some word games that don't make a lot of sense.
For the sake of my own eyes and mother tongue, I would like to fix the Spanish, but I cannot for the life of me figure out how to access the text. Do any of you know how to access the subtitles?