chore: release v1.15.1

skills/baoyu-xhs-images/references/presets/chalkboard.md

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+---
+name: chalkboard
+category: educational
+---
+
+# Chalkboard Style
+
+Black chalkboard background with colorful chalk drawing aesthetic.
+
+## Element Combination
+
+```yaml
+canvas:
+  ratio: portrait-3-4
+  grid: single | dual | triptych
+
+image_effects:
+  cutout: stylized
+  stroke: none
+  filter: none
+
+typography:
+  decorated: handwritten
+  tags: none
+  direction: horizontal | vertical
+
+decorations:
+  emphasis: underline | circle-mark | arrows-curvy
+  background: chalkboard
+  doodles: hand-drawn-lines | stars-sparkles
+  frames: none
+```
+
+## Color Palette
+
+| Role | Colors | Hex |
+|------|--------|-----|
+| Background | Chalkboard black, green-black | #1A1A1A, #1C2B1C |
+| Primary Text | Chalk white | #F5F5F5 |
+| Accent 1 | Chalk yellow | #FFE566 |
+| Accent 2 | Chalk pink | #FF9999 |
+| Accent 3 | Chalk blue | #66B3FF |
+| Accent 4 | Chalk green | #90EE90 |
+| Accent 5 | Chalk orange | #FFB366 |
+
+## Visual Elements
+
+- Hand-drawn chalk illustrations with sketchy, imperfect lines
+- Chalk dust effects around text and key elements
+- Doodles: stars, arrows, underlines, circles, checkmarks
+- Mathematical formulas and simple diagrams
+- Eraser smudges and chalk residue textures
+- Stick figures and simple icons
+- Connection lines with hand-drawn feel
+
+## Typography
+
+- Hand-drawn chalk lettering style
+- Visible chalk texture on all text
+- Imperfect baseline adds authenticity
+- White or bright colored chalk for emphasis
+
+## Style Rules
+
+### Do
+- Maintain authentic chalk texture on all elements
+- Use imperfect, hand-drawn quality throughout
+- Add subtle chalk dust and smudge effects
+- Create visual hierarchy with color variety
+- Include playful doodles and annotations
+
+### Don't
+- Use perfect geometric shapes
+- Create clean digital-looking lines
+- Add photorealistic elements
+- Use gradients or glossy effects
+
+## Best Layout Pairings
+
+| Layout | Compatibility | Use Case |
+|--------|---------------|----------|
+| sparse | ✓✓ | Educational covers |
+| balanced | ✓✓ | Standard lessons |
+| dense | ✓✓ | Detailed tutorials |
+| list | ✓✓ | Learning checklists |
+| comparison | ✓ | Concept comparisons |
+| flow | ✓✓ | Process explanations |
+
+## Best For
+
+- Educational content
+- Tutorials and how-to's
+- Classroom themes
+- Teaching materials
+- Workshops
+- Informal learning sessions
+- Knowledge sharing