cool, Steam punk styled skeletons. Draw layers for a generative PFP collection. All files 1024x1024 RGBA PNG.

1. artifacts/base.png: the base character, Cool skeleton character facing toward the camera but looking slightly to the side, front-facing head and shoulders, centred, transparent background, top of the head near y=430, head about 450px wide centred at x=512, shoulders reaching the bottom edge, no mouth drawn (mouths are a separate layer). 2) artifacts/background_01.png .. background_12.png: 12 full-canvas opaque backgrounds in a consistent palette.

2. artifacts/traits.json: {"backgrounds":[{"file","name","weight"}...]} weights summing to 100.