Correct. I linked to CraftPix because they offer free versions so you can download one and actually try it out and tinker if you like. I figured the file access stuff would be most useful to you.
Currently the bug I’m experiencing with this code is I must mark any character that uses it to have Editable children or the images don’t show up when exported. I posted about it in detail here: CharacterBody2D only shows up in Exports if Editable Children is checked - #8 by dragonforge-dev When I come up with a solution, which I hope will be in the next week, it will go there.