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

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Visual style: chalkboard

Classroom chalkboard — a dark slate field, soft chalk-stroke line work, powdery pastel accents. Nostalgic and instructional. For teaching decks, tutorials, school / academic content, retro-classroom atmosphere.


1. Shape & decoration

  • Shape language: chalk-stroke line work with slightly diffused, dry-medium edges; sketched boxes, brackets, arrows in chalk. Confident but never mechanical — the sketched boxes and arrows are <path> with non-aligned points; a primitive <rect> / <line> snaps the chalk back to mechanical.
  • Decoration: underlines and emphasis marks; a few sprinkled chalk stars / dots. Blackboard pedagogy — organized sections, a clear central focus.
  • Whitespace: the dark board reads as room; let chalk marks breathe rather than crowd.

2. Typography character

  • Hand-lettered chalk character for titles; legible body. Dry, nostalgic, classroom-warm.

Families are chosen at confirmation g; this style asks for a hand-lettered chalk title character.

3. Using the deck's colors

  • Dark slate field; off-white chalk carries most marks; the deck's colors appear as soft, powdery pastel chalk accents, used sparingly.
  • Restrained and powdery — never saturated fills.

HEX values come from confirmation e; this style only governs the chalk-on-slate, powdery-accent discipline — it names no colors. (Dark-field legibility: shared-standards.md §6.)

4. Texture / elevation

  • Flat — depth from chalk-stroke weight, not material. Chalk-dust grain texture across the board is on-brand; no drop shadows.

5. Paired image-rendering

chalkboard — chalk-on-slate imagery with the same classroom feel.