feat: update slide deck

skills/baoyu-slide-deck/references/styles/sketch-notes.md

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+# sketch-notes
+
+Soft hand-drawn illustration style with fresh, refined minimalist editorial aesthetic
+
+## Design Aesthetic
+
+Illustration or hand-drawn feel with soft, relaxed brush strokes. Fresh, refined overall style with minimalist editorial approach. Emphasis on precision, clarity and intelligent elegance while prioritizing warmth, approachability and friendliness.
+
+## Background
+
+- Color: Warm Off-White (#FAF8F0)
+- Texture: Subtle paper grain, slightly warm tone to avoid clinical feel
+
+## Typography
+
+### Primary Font (Headlines)
+
+Bold hand-written marker font or cartoon poster font. Slightly uneven baseline for organic feel. Thick strokes with soft edges. Render as hand-drawn letters, not typed text.
+
+### Secondary Font (Body)
+
+Clear handwritten round or hard-pen style mimicking everyday notes. Consistent sizing with slight natural variation. Render as casual handwriting, legible but not mechanical.
+
+## Color Palette
+
+| Role | Color | Hex | Usage |
+|------|-------|-----|-------|
+| Background | Warm Off-White | #FAF8F0 | Primary background |
+| Primary Text | Deep Charcoal | #2C3E50 | Headlines, body text |
+| Alt Text | Deep Brown | #4A4A4A | Secondary text elements |
+| Accent 1 | Soft Orange | #F4A261 | Highlights, emphasis |
+| Accent 2 | Mustard Yellow | #E9C46A | Secondary highlights |
+| Accent 3 | Sage Green | #87A96B | Nature, growth concepts |
+| Accent 4 | Light Blue | #7EC8E3 | Tech, AI elements |
+| Accent 5 | Red Brown | #A0522D | Land, infrastructure |
+
+## Visual Elements
+
+- Connection lines with hand-drawn wavy feel, not perfectly straight
+- Conceptual abstract icons illustrating ideas rather than literal scenes
+- Color fills don't need to completely fill outlines - preserve hand-painted casual feel
+- Simple geometric shapes with rounded corners
+- Arrows and pointers with sketchy, informal style
+- Doodle-style decorative elements: stars, spirals, underlines
+
+## Style Rules
+
+### Do
+
+- Keep layouts open and well-structured
+- Emphasize information hierarchy and readability
+- Use hand-drawn quality for all elements
+- Allow imperfection - slight wobbles add character
+- Layer elements with subtle overlaps
+
+### Don't
+
+- Use perfect geometric shapes
+- Create photorealistic elements
+- Overcrowd with too many elements
+- Use pure white backgrounds
+- Add slide numbers, footers, or logos
+
+## Best For
+
+Educational content, knowledge sharing, technical explanations, friendly presentations, tutorials, onboarding materials