zcbot/skills/ppt/references/visual-styles/blueprint.md

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# Visual style: blueprint
Engineering schematic — thin line work on dark blueprint paper, isometric projection, technical-annotation language. Speaks like a drawing hung on a wall, not a marketing slide. For architecture walkthroughs, technical briefings, engineering whitepapers, systems explainers.
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## 1. Shape & decoration
- Shape language: thin single-weight line frames (no heavy fills); components drawn as outlined geometry; optional isometric / 3D-axonometric projection for structures. Slight or zero corner rounding.
- Decoration: the engineering-drawing vocabulary — dimension lines, leader arrows, component codes, coordinate labels, a faint gridline backdrop under everything. Annotation *is* the decoration.
- Whitespace: the grid breathes through; let line work float on the dark field with measured spacing.
## 2. Typography character
- Clean sans for labels and body; monospace for every component name / code / coordinate — mirroring how real technical docs read.
- Small, precise annotation type; wide tracking on coordinate / dimension labels. Restraint over emphasis.
> Families are chosen at confirmation `g`; this style asks for a clean sans + monospace pairing.
## 3. Using the deck's colors
- Dark paper field; a single line-color carries all the schematic line work (frames, connectors, edges); one spot accent marks the current state / key path / callout — the classic engineering-drawing convention of one highlight color.
- Everything else stays low-key line work. The accent appears at few points, high contrast.
> HEX values come from confirmation `e`; this style only governs the line-vs-accent discipline — it names no colors.
## 4. Texture / elevation
- Flat line work, not material elevation. Depth reads from isometric projection and layered line weights, not shadows. Optional subtle corner vignette / accent glow on the dark paper — keep it faint. (Dark-field legibility: [`shared-standards.md §6`](../shared-standards.md).)
## 5. Paired image-rendering
`blueprint` — lock it so AI imagery shares the schematic line-drawing aesthetic.