(and hopefully it will mean there is more mod content even if you won't use it), so this weekend I've been working on adding an interface for that. It's obviously not very clean yet, but it's definitely clearer than editing a text file, and having an in game preview is really useful.
I'm going to try to make it more user friendly, and add some tools to help with sorting through and editing multiple lines, then I'll release it next weekend. I'll try to add some more costume options too so that there's something new to see in the actual game.
*edit* I'm thinking of changing dialogue mods so that the default lines are automatically cleared, because it seems like people usually just clear everything apart from the finishes. If this will break a lot of mods though I'll find a different way around it.