feat(baoyu-cover-image): add macaron palette and hand-drawn-edu style preset

skills/baoyu-cover-image/references/auto-selection.md

@@ -27,6 +27,7 @@ When a dimension is omitted, select based on content signals.
 | Zen, focus, essential, pure, simple | `mono` |
 | History, vintage, retro, classic, exploration | `retro` |
 | Movie poster, album cover, concert, cinematic, dramatic, two-color | `duotone` |
+| Education, tutorial, knowledge, onboarding, concept explainer | `macaron` |
 
 ## Auto Rendering Selection
 

skills/baoyu-cover-image/references/config/preferences-schema.md

@@ -18,7 +18,7 @@ watermark:
 
 preferred_type: null      # hero|conceptual|typography|metaphor|scene|minimal or null for auto-select
 
-preferred_palette: null   # warm|elegant|cool|dark|earth|vivid|pastel|mono|retro or null for auto-select
+preferred_palette: null   # warm|elegant|cool|dark|earth|vivid|pastel|mono|retro|duotone|macaron or null for auto-select
 
 preferred_rendering: null # flat-vector|hand-drawn|painterly|digital|pixel|chalk or null for auto-select
 

skills/baoyu-cover-image/references/palettes/macaron.md

@@ -0,0 +1,26 @@
+# macaron
+
+Soft macaron pastel color blocks on warm cream
+
+## Color Palette
+
+| Role | Color | Hex |
+|------|-------|-----|
+| Primary 1 | Sky Blue | #A8D8EA |
+| Primary 2 | Mint Green | #B5E5CF |
+| Primary 3 | Lavender | #D5C6E0 |
+| Background | Warm Cream | #F5F0E8 |
+| Background Alt | Peach | #FFD5C2 |
+| Accent 1 | Coral Red | #E8655A |
+| Accent 2 | Deep Charcoal | #2D2D2D |
+
+## Decorative Hints
+
+- Rounded pastel color blocks
+- Subtle warm paper grain texture
+- Soft shadows, no hard edges
+- Gentle gradient transitions between zones
+
+## Best For
+
+Educational content, knowledge sharing, concept explainers, tutorials, tech summaries, onboarding materials

skills/baoyu-cover-image/references/style-presets.md

@@ -23,6 +23,7 @@
 | `vintage` | `retro` | `hand-drawn` |
 | `warm` | `warm` | `hand-drawn` |
 | `warm-flat` | `warm` | `flat-vector` |
+| `hand-drawn-edu` | `macaron` | `hand-drawn` |
 | `watercolor` | `earth` | `painterly` |
 | `poster-art` | `retro` | `screen-print` |
 | `mondo` | `mono` | `screen-print` |