It's a beautiful and amazing mod that can almost go along with any playthrough. But I really want to create a fork of it for a personal game and trying to reverse engineer the mod file yielded very little result. Ofc its understandable if you want to keep it private.

**Edit! Found it. It's updated for 1.4 so it should work:** https://github.com/unisun2/Rimworld_mods/tree/master/RPG_Style_Level_Up_Mod/1.3/Source