Eleven bands. Cream, white and pebble do the sectioning, with hairlines. No shadows on bands. No dark band: the dark surface is the terminal window, and it appears only where there is a receipt.

One filled button on a screen, and it is orange. Every other button is a ghost: a hairline, no fill. Hover goes darker, never lighter. No lip, no lift. Focus is a 3px orange outline, not a glow.

Every ratio measured with contrast.py against the ground the text sits on. Body needs 4.5:1, large 3:1. Nothing set as body text is under 4.8:1. The vivid orange is 3.2:1 and is only ever a rule under a quote or one phrase at 30px and up.

It looks like none of them because it is light where two of them are black, the dark window appears only where there is a receipt, and the orange is under one percent of the page. Took nothing else from any of them.

Night, same day: fingerprint.com’s home page became the gold standard for graphics and motion. Seven mechanisms were written down (design-loop/bar.md), three critics judged every round blind, and the page shipped when all three passed. Their object is the device and their second colour is blue; ours is the receipt and teal.

Fingerprint’s object is the device. Assay’s is the receipt. The master sheet was drawn with Nano Banana Pro on 10 September 2026 (design-loop/master-receipt.png); the shape on the site is an SVG traced from it, so it is crisp at any size, takes the current text colour, and draws itself in once when it scrolls into view. A reader learns the object once and then reads every section by the state it is in.

cast-sheet.webp4:3 · the six, front-on

A rubber stamp, a sample vial with a blank tag, a brass loupe, a curled till receipt, a stapled stack of ruled pages with one line underlined, and a closed black box with a slot. Each one is a noun on the website: the stamp is the verdict, the vial is the sample, the loupe is the check, the receipt is the bill, the pages are the source, the box is every other tool.

• Engraved technical illustration, 1950s laboratory manual plate. Fine black line, crosshatch shading. No cartoon, no photoreal.
• One accent: deep green #1C6A45, only for a seal impression and one underline. Brass and wood are allowed as washes because the objects are brass and wood.
• Flat background #F3EEE4, said three ways: zero texture, zero gradient, no shadow on the background.
• No people, no hands, no readable text, no letters, no numbers. A seal is a circle with one check mark. A label is a blank ruled shape.
• Nothing cropped. Generous margin on every side. Objects separated by visible gaps of background.
• Every scene is built only from the objects on the two sheets, passed in as image references.

The rule was torn down from fingerprint.com on 10 September 2026: thirteen animations on their home page, eleven run once on entry in under a second, only two repeat and both are small. So here: a block fades up once when it arrives; a receipt draws itself in once, 700ms, staggered by line; the hero reader types one real receipt in about three seconds and stops. At most two things move forever on a page, and both are small: the cursor on the line being read, and a dot on a job that is really running. The film plays once. Reduced motion turns all of it off.

Every visible line on the site is run through the linter, which strips tags and scores only what a visitor can read: five points, one off per group hit, and a build that fails below five. The number-plus-noun check is deliberately noisy, because a false positive costs ten seconds and a false negative is a claim nobody can back. The draft column below is what a first pass produced on 9 September 2026. It scored 2 of 5. The shipped column scores 5.

Press it, then open the Website tab. Every marked line is rewritten in place with its draft and outlined in red. Press it again and the shipped words come back. The layout does not jump either way.