I was just wondering if the full mod tools are expected to allow UI updates. I can think of many things I'd like to do as far as layout, etc, to make the game easier to play from bed with a controller, among other things. Will that be possible in the future? Or is it now and I'm just not smart or experienced enough to figure out how?

I was just looking for this.  There's some things you can import into a mod project where if you click on them it looks like it's supposed to link to code (which we don't have, of course).  But anyways I didn't see a way to write code and link it into a mod.  The database contains links between items in the database and what looks to be code segments, but I don't see how to create new UIMapper targets.

I've been looking into the same.

It seems like the UIMappers refer to DLLs, and we can't extend or replace any C# scripts or functions.