# Rendering: chalkboard

Chalk on a dark green or black board — classroom aesthetic. Used in teaching-focused decks, tutorials, school / academic content, retro educational atmosphere.

## 1. Style paragraph (paste-ready, 95 words)

> Classroom chalkboard aesthetic. Dark green or near-black slate background with visible subtle chalk-dust texture. All marks appear as soft chalk strokes — slightly diffused edges, off-white or pastel colors that look powdery rather than saturated. Hand-drawn lines are confident but with the characteristic dry-medium quality of real chalk. Composition follows blackboard pedagogy — central or organized layout, clear sections, occasional underlines and emphasis marks. Color is restrained: white chalk dominates, one or two pastel accents (yellow, soft pink, light cyan) appear sparingly. Overall feel is nostalgic, instructional, warm-classroom — common in teaching content and tutorial decks.

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## 2. Line, texture, depth

| Aspect | Treatment |
|---|---|
| Line quality | Soft chalk strokes with slightly diffused edges, dry-medium look |
| Texture | Visible chalk-dust grain at 15-25% opacity across the board |
| Depth | Flat |
| Material | Slate board (dark green or near-black) + chalk |
| Mood | Nostalgic, instructional, classroom-warm |

## 3. Using the deck's HEX values

chalkboard has a strong **material-color tendency**: dark field + light chalk + sparse accents. It never replaces deck colors. Offer it only when the confirmed background / body-text roles can support that contrast.

- Board: use the deck's exact `background` or `secondary_bg` role
- Chalk strokes: use the exact `body_text` role; dry texture supplies the chalk effect without changing its HEX
- Accent marks: use exact `accent` / `secondary_accent` values sparingly; do not pastel-tint them

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## 4. Fewshot prompt snippets

**Snippet A — half-page lesson visual, text_policy: embedded**

> Classroom chalkboard aesthetic. Use the deck's locked background role as the board, with visible chalk-dust texture at 20% opacity. Three rounded boxes drawn in the locked body-text color as soft chalk strokes sit in a row, each containing a simple chalk-drawn icon (a tree, a lightbulb, a paper plane). Above the boxes, a hand-lettered title reads "GROWTH" in English block caps. Hand-drawn chalk arrows connect the boxes left-to-right. Small chalk star and dot decorations appear sparingly. One underline uses the locked accent color with deliberate dry-medium texture. Composed as a 600×500 half-page block with 14% inner padding. Chalk text stays to short keywords.
