Also interested in this, as well as creating custom NPCs. I looked through the Editor options in 1.7.0 and I see I can designate things about the custom NPC (Alexia). But I don't know how to actually add them to the game. Did some searching online, and I'm finding bits and pieces of stuff that may or may not be relevant anymore. Something about using Trellis for the sprites, another thing about generating art for the character. But nothing technical, like how to actually get said art/sprites in the game itself.
Is there a basic walkthrough anywhere? I can look up tutorials and put in the necessary elbow grease myself, I just need to know where to start. What tools, what order, etc.