[Q] What I've been wondering using the mod

[ChromaPIE]

I've noticed that this mod also reads locale files of every mods installed server-side, thus allowing players connected to the server have texts that originally stay English translated to localized ones specified in serverlocalization.cfg, and that's pretty awesome. But my question is, is it possible to use resourcepacks or stuff like that to intervene the locales? or I have to edit the jars themselves?