I've created artifacts/image.png: a 512×512 PNG of IU_0375 in 16-bit pixel art. It shows a gold skull with sleepy eyes, wearing a steel helmet and a cobalt hoodie. I checked the file by decoding it: the header is a valid PNG (8-bit RGB), the size is 512×512, and there are 10 colours in total. I also looked at the rendered image.

What's in it

• Grid: the art is drawn on a 32×32 grid and each cell is scaled up to a 16×16 square. That keeps the edges hard, with no blur or gradients.
• Character: one front-facing bust, centred, with the shoulders running to the bottom edge.
• Helmet: steel, with a bone highlight, two rivets, and a small antenna with a green glowing tip.
• Face: the eyes are half covered by drooping lids with a thin green glow under each lid. There's also a nose hole, a row of teeth, and light shading on the cheeks.
• Hoodie: navy hood lining, white drawstrings, arm seams, and a pocket line.
• Outline and background: every shape has a thick black outline. The background is solid #0c1610 with six small green specks, and there's no scenery.
• Text: none: no letters, logo, frame or border.

Requirements that may not be fully met

• The outline is pure black (#000000), which isn't in the listed palette. The spec asks for a black outline, so I treated black as allowed. Apart from black and the background colour, every colour comes from the allowed list.
• At this tiny grid size the eyes read as sleepy only in a stylised way, and the eye sockets could be mistaken for goggles.
• I haven't compared it with the rest of the 787-piece set, so I can't confirm it matches the collection's style.

There was no image tool to call, so I wrote a small Python script, tools/make_iu_0375.py, that draws the grid and writes the PNG directly. Running it again rebuilds the same image. The script and a README.md describing the image and the points above are committed. The PNG itself is left untracked, as required.