Early-2000s TV cartoon style, thick black outlines, flat bold colours with one hard shadow tone, simple geometric shapes, playful and chunky. Draw layers for a generative PFP collection. All files 1024x1024 RGBA PNG.

1. artifacts/base.png: the base character, A friendly boxy robot with a rounded square head, big round glowing eyes, a smooth domed top with no antenna, riveted metal panels, painted in teal and silver, body and head turned about 15 degrees so the face points slightly to the viewer's right, eyes still looking at the viewer, both eyes fully visible; framed head and shoulders: the top of the head near y=210, the neck meeting the shoulders near y=740, both shoulders and the upper chest in the picture and running off the bottom edge; the arms are down and out of view, nothing in front of the chest; extra detail from the creator: looking at the viewer with a cheerful, curious expression, ON THIS TEMPLATE: crown (top of the head) at y=210, eye line at y=425, chin at y=665, narrowest point of the neck at y=700, head 340px wide at the cheekbones centred on x=500, bare shoulders running off the bottom edge about 880px wide.

Natural proportions for what it is: a human head or skull is about 1.3x taller than wide with a domed cranium and a jaw that narrows, eyes near the vertical midpoint of the head; never squashed or oval.

Transparent background; eyes open; a simple neutral closed mouth drawn on the base, matching the style (there is no separate mouth layer in this collection); no hat or headwear (hats are a separate layer); no glasses or eyewear (a separate layer); NO CLOTHING AT ALL: bare neck and shoulders, no collar, no scarf, no coat, no shirt (clothing is a separate layer drawn on top, and anything on the base shows through behind it).

2. 12 full-canvas opaque backgrounds: flat solid colours: tangerine, lime, bubblegum pink, sky blue, lemon yellow, plus a rare halftone dot pattern. Write artifacts/base.png, artifacts/background_01.png .. background_12.png, and artifacts/traits.json: {"backgrounds":[{"file","name","weight"}...]} with weights summing to 100.