Any chance of allowing custom scripts in Pixelorama? I think it would be awesome if it allowed custom scripts in GDScript, haha. (In contrast to how Aseprite allows custom scripts in Lua). The main thing is writing an API layer that people can reference to grab different objects within the Pixelorama project.
EDIT: Sorry, I didn't see that extensions were possible! That is great! I think that maybe they shouldn't be hidden away in preferences but that's just a personal preference. Great work!!!