(Sorry for investigating the code, but it's needed for the translations)

Many Isaac players waited for Fiend Folio for Repentance, so as foreign players like Korean. Many Korean players want to show item descriptions as Korean because most people can't speak English. So I was going to make Korean translations for EID.

But there's a problem: Currently Fiend Folio's descriptions are added through legacy method (such as __eidItemDescriptions), translations cannot be added through this way. I've found the note that references this but I'm unsure about that.

I'm currently working for the translation anyways, it would take so much time for making this if I start later