Canvas 1024x1024 RGBA PNG, transparent except hat pixels. Match the base exactly: flat cel-shaded cartoon, soft warm highlights, uniform dark-brown medium outline.

Pose: three-quarter view looking to the viewer's LEFT, eye level; draw every hat in this same perspective, its front facing left. Draw 12 garden-gnome hats: tall pointed conical caps, each with a round bobble/pompom at the tip.

Vary them clearly: classic red felt, forest green wool knit, blue with white polka dots, striped knit, patched brown leather, mustard corduroy, purple velvet-look felt with gold star, pine green with a holly sprig, mushroom red with white spots, orange knit with ribbed cuff, grey-blue with silver bell, rainbow striped (rarest).

Bobbles vary: fluffy white wool, matching yarn, gold, bell.

Placement: the hat is WORN, pulled down over the dome of the skull, centred on the cranium at x=515 (not the face line). The lower edge/cuff runs in perspective from about (365,185) on the left/front, just above the eyebrows, to about (668,235) on the right, just above the top of the ear; its lowest pixel must fall between y=180 and y=240. Never cover the eyes (y=256), brows or nose; never show the inside or lining; never float above the crown (y=102).

The cone rises from the head; because the crown is only 102px from the canvas top, let the tall cone bend or flop over to the LEFT or RIGHT so the entire hat including the bobble stays inside the canvas with at least 10px margin (keep all pixels y>=10, x between 150 and 900). Draw nothing that belongs behind the head.

Outputs: artifacts/hat_01.png .. artifacts/hat_12.png and artifacts/hat.json: an array of {"file","name","weight"} with weights summing to 100, classic red highest, rainbow lowest. Write artifacts/hat_01.png .. artifacts/hat_12.png and artifacts/hat.json: an array of {"file","name","weight"} with weights summing to 100, rarer lower.