# Syntax → Structure Illustration System

## Production master

- `imagery/ill/syntax-structure/syntax-structure-sequence.svg`
- Class: `IMG-I`
- Creator: Herman — production
- Review: Brick
- Approval/merge: Human owner

## Locked construction

1. Five frames: rule → plane → fold → sorter → routed use.
2. Vertices A/B/C remain visibly traceable in every frame.
3. The final frame performs a concrete operation: inbound item → sort → two output routes.
4. Palette is limited to Ink `#171619`, Paper/White, and Core Oxide `#C84630`.
5. Exactly two structural stroke weights are used: 2 and 4 units.
6. Line endpoints are square; joins are mitered.
7. The Cursor symbol is never used as decorative illustration material.

## Custody

The final SVG is promoted from the Gate C proof advanced by Brick at exact head `0bd799c2f1764e01e08fad452c6c4c9b996b72e5`. It is an editorial system diagram, not operating evidence. Its provenance sidecar is `imagery/ill/syntax-structure/provenance.json`.