| 1 | # Rendering: chalkboard |
| 2 | |
| 3 | Chalk on a dark green or black board — classroom aesthetic. Used in teaching-focused decks, tutorials, school / academic content, retro educational atmosphere. |
| 4 | |
| 5 | ## 1. Style paragraph (paste-ready, 95 words) |
| 6 | |
| 7 | > 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. |
| 8 | |
| 9 | --- |
| 10 | |
| 11 | ## 2. Line, texture, depth |
| 12 | |
| 13 | | Aspect | Treatment | |
| 14 | |---|---| |
| 15 | | Line quality | Soft chalk strokes with slightly diffused edges, dry-medium look | |
| 16 | | Texture | Visible chalk-dust grain at 15-25% opacity across the board | |
| 17 | | Depth | Flat | |
| 18 | | Material | Slate board (dark green or near-black) + chalk | |
| 19 | | Mood | Nostalgic, instructional, classroom-warm | |
| 20 | |
| 21 | ## 3. Using the deck's HEX values |
| 22 | |
| 23 | 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. |
| 24 | |
| 25 | - Board: use the deck's exact `background` or `secondary_bg` role |
| 26 | - Chalk strokes: use the exact `body_text` role; dry texture supplies the chalk effect without changing its HEX |
| 27 | - Accent marks: use exact `accent` / `secondary_accent` values sparingly; do not pastel-tint them |
| 28 | |
| 29 | --- |
| 30 | |
| 31 | ## 4. Fewshot prompt snippets |
| 32 | |
| 33 | **Snippet A — half-page lesson visual, text_policy: embedded** |
| 34 | |
| 35 | > 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. |
| 36 |