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# Prompt Construction
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## Prompt File Format
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Each prompt file uses YAML frontmatter + content:
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```yaml
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---
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illustration_id: 01
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type: infographic
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style: blueprint
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references: # ⚠️ ONLY if files EXIST in references/ directory
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- ref_id: 01
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filename: 01-ref-diagram.png
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usage: direct # direct | style | palette
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---
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[Type-specific template content below...]
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```
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**⚠️ CRITICAL - When to include `references` field**:
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| Situation | Action |
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|-----------|--------|
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| Reference file saved to `references/` | Include in frontmatter ✓ |
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| Style extracted verbally (no file) | DO NOT include in frontmatter, append to prompt body instead |
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| File path in frontmatter but file doesn't exist | ERROR - remove references field |
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**Reference Usage Types** (only when file exists):
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| Usage | Description | Generation Action |
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|-------|-------------|-------------------|
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| `direct` | Primary visual reference | Describe the reference (composition, subject, style, palette) in prompt text — `image_generate` does not accept reference-image inputs |
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| `style` | Style characteristics only | Describe style in prompt text |
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| `palette` | Color palette extraction | Include colors in prompt |
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**If no reference file but style/palette extracted verbally**, append directly to prompt body:
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```
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COLORS (from reference):
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- Primary: #E8756D coral
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- Secondary: #7ECFC0 mint
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...
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STYLE (from reference):
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- Clean lines, minimal shadows
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- Gradient backgrounds
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...
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```
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---
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## Default Composition Requirements
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**Apply to ALL prompts by default**:
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| Requirement | Description |
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|-------------|-------------|
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| **Clean composition** | Simple layouts, no visual clutter |
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| **White space** | Generous margins, breathing room around elements |
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| **No complex backgrounds** | Solid colors or subtle gradients only, avoid busy textures |
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| **Centered or content-appropriate** | Main visual elements centered or positioned by content needs |
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| **Matching graphics** | Use graphic elements that align with content theme |
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| **Highlight core info** | White space draws attention to key information |
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**Add to ALL prompts**:
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> Clean composition with generous white space. Simple or no background. Main elements centered or positioned by content needs.
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---
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## Color Specification Rules
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Colors in prompts use hex codes for **rendering guidance only** — they tell the model which colors to use, NOT what text to display.
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**⚠️ CRITICAL**: Image generation models sometimes render color names and hex values as visible text labels in the image (e.g., painting "Macaron Blue #A8D8EA" as a label). This must be prevented.
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**Add to ALL prompts that contain a COLORS section**:
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> Color values (#hex) and color names are rendering guidance only — do NOT display color names, hex codes, or palette labels as visible text in the image.
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---
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## Character Rendering
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When depicting people:
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| Guideline | Description |
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|-----------|-------------|
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| **Style** | Simplified cartoon silhouettes or symbolic expressions |
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| **Avoid** | Realistic human portrayals, detailed faces |
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| **Diversity** | Varied body types when showing multiple people |
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| **Emotion** | Express through posture and simple gestures |
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**Add to ALL prompts with human figures**:
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> Human figures: simplified stylized silhouettes or symbolic representations, not photorealistic.
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---
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## Text in Illustrations
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| Element | Guideline |
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|---------|-----------|
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| **Size** | Large, prominent, immediately readable |
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| **Style** | Handwritten fonts preferred for warmth |
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| **Content** | Concise keywords and core concepts only |
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| **Language** | Match article language |
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**Add to prompts with text**:
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> Text should be large and prominent with handwritten-style fonts. Keep minimal, focus on keywords.
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---
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## Principles
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Good prompts must include:
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1. **Layout Structure First**: Describe composition, zones, flow direction
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2. **Specific Data/Labels**: Use actual numbers, terms from article
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3. **Visual Relationships**: How elements connect
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4. **Semantic Colors**: Meaning-based color choices (red=warning, green=efficient)
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5. **Style Characteristics**: Line treatment, texture, mood
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6. **Aspect Ratio**: End with ratio and complexity level
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## Type-Specific Templates
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### Infographic
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```
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[Title] - Data Visualization
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Layout: [grid/radial/hierarchical]
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ZONES:
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- Zone 1: [data point with specific values]
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- Zone 2: [comparison with metrics]
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- Zone 3: [summary/conclusion]
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LABELS: [specific numbers, percentages, terms from article]
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COLORS: [semantic color mapping]
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STYLE: [style characteristics]
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ASPECT: 16:9
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```
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**Infographic + vector-illustration**:
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```
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Flat vector illustration infographic. Clean black outlines on all elements.
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COLORS: Cream background (#F5F0E6), Coral Red (#E07A5F), Mint Green (#81B29A), Mustard Yellow (#F2CC8F)
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ELEMENTS: Geometric simplified icons, no gradients, playful decorative elements (dots, stars)
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```
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**Infographic + vector-illustration + warm palette**:
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```
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Flat vector illustration infographic. Clean black outlines on all elements.
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PALETTE OVERRIDE (warm): Warm-only color palette, no cool colors.
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COLORS: Soft Peach background (#FFECD2), Warm Orange (#ED8936),
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Terracotta (#C05621), Golden Yellow (#F6AD55), Deep Brown (#744210)
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ELEMENTS: Geometric simplified icons, no gradients, rounded corners,
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modular card layout, consistent icon style
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```
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### Scene
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```
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[Title] - Atmospheric Scene
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FOCAL POINT: [main subject]
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ATMOSPHERE: [lighting, mood, environment]
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MOOD: [emotion to convey]
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COLOR TEMPERATURE: [warm/cool/neutral]
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STYLE: [style characteristics]
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ASPECT: 16:9
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```
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### Flowchart
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```
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[Title] - Process Flow
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Layout: [left-right/top-down/circular]
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STEPS:
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1. [Step name] - [brief description]
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2. [Step name] - [brief description]
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...
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CONNECTIONS: [arrow types, decision points]
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STYLE: [style characteristics]
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ASPECT: 16:9
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```
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**Flowchart + vector-illustration**:
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```
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Flat vector flowchart with bold arrows and geometric step containers.
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COLORS: Cream background (#F5F0E6), steps in Coral/Mint/Mustard, black outlines
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ELEMENTS: Rounded rectangles, thick arrows, simple icons per step
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```
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**Flowchart + sketch-notes + macaron palette**:
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```
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Hand-drawn educational flowchart on warm cream paper. Slight wobble on all lines.
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PALETTE: macaron — soft pastel color blocks
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COLORS: Warm Cream background (#F5F0E8), zone fills in Macaron Blue (#A8D8EA),
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Lavender (#D5C6E0), Mint (#B5E5CF), Coral Red (#E8655A) for emphasis
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ELEMENTS: Rounded cards with dashed/solid borders, wavy hand-drawn arrows with labels,
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simple stick-figure characters, doodle decorations (stars, underlines)
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STYLE: Color fills don't completely fill outlines, hand-drawn lettering, generous white space
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```
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**Flowchart + ink-notes + mono-ink palette**:
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```
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Professional hand-drawn visual-note flowchart on pure white. Black ink line work
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with slight wobble, à la Mike Rohde sketchnoting.
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PALETTE: mono-ink — black ink dominant, sparse semantic accents
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COLORS: Pure White background (#FFFFFF), Near Black (#1A1A1A) for all lines,
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text, and figures; Coral Red (#E8655A) only for risk/emphasis,
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Muted Teal (#5FA8A8) only for positive/solution states
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ELEMENTS: Left-to-right stage boxes with rounded-rect frames, wavy hand-drawn
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arrows between stages, simple stick-figure characters with role
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labels above (e.g., "ML Engineer", "Team Lead"), dashed-border box
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for future/empty stage, small doodle icons per stage
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STYLE: Hand-lettered titles (bold, oversized), handwritten stage labels and
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annotations, generous white space, bottom tagline summarizing takeaway
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```
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### Comparison
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```
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[Title] - Comparison View
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LEFT SIDE - [Option A]:
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- [Point 1]
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- [Point 2]
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RIGHT SIDE - [Option B]:
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- [Point 1]
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- [Point 2]
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DIVIDER: [visual separator]
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STYLE: [style characteristics]
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ASPECT: 16:9
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```
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**Comparison + vector-illustration**:
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```
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Flat vector comparison with split layout. Clear visual separation.
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COLORS: Left side Coral (#E07A5F), Right side Mint (#81B29A), cream background
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ELEMENTS: Bold icons, black outlines, centered divider line
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```
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**Comparison + vector-illustration + warm palette**:
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```
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Flat vector comparison with split layout. Clear visual separation.
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PALETTE OVERRIDE (warm): Warm-only color palette, no cool colors.
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COLORS: Left side Warm Orange (#ED8936), Right side Terracotta (#C05621),
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Soft Peach background (#FFECD2), Deep Brown (#744210) accents
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ELEMENTS: Bold icons, black outlines, centered divider line
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```
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**Comparison + ink-notes + mono-ink palette** (Before/After, Traditional vs New):
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```
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Professional hand-drawn sketchnote comparison on pure white. Black ink line work
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with slight wobble, à la Mike Rohde sketchnoting.
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PALETTE: mono-ink — black ink dominant, sparse semantic accents
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COLORS: Pure White background (#FFFFFF), Near Black (#1A1A1A) for all outlines,
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text, figures, arrows; Coral Red (#E8655A) reserved for risks/gaps
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(left/Before side); Muted Teal (#5FA8A8) reserved for positives
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(right/After side). Color accents under 10% of canvas.
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LAYOUT: Left | Right split with vertical hand-drawn divider. Hand-lettered
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"Before" label (top-left) and "After" label (top-right).
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LEFT SIDE: Stick figure(s) with role label above, speech bubble showing the
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pain point, bulleted pain-point list in handwritten text.
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RIGHT SIDE: Stick figure(s) showing the new state, bulleted improvement list,
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small positive-action icons.
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BRIDGE: Curved hand-drawn "mindset shift" arrow bridging left → right with
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small inline label describing the shift.
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BOTTOM: Single-line hand-lettered tagline summarizing the takeaway.
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STYLE: Hand-lettered headings (bold, oversized), handwritten body annotations,
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generous white space, no computer fonts, no gradients, no shadows.
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```
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### Framework
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```
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[Title] - Conceptual Framework
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STRUCTURE: [hierarchical/network/matrix]
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NODES:
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- [Concept 1] - [role]
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- [Concept 2] - [role]
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RELATIONSHIPS: [how nodes connect]
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STYLE: [style characteristics]
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ASPECT: 16:9
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```
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**Framework + vector-illustration**:
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```
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Flat vector framework diagram with geometric nodes and bold connectors.
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COLORS: Cream background (#F5F0E6), nodes in Coral/Mint/Mustard/Blue, black outlines
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ELEMENTS: Rounded rectangles or circles for nodes, thick connecting lines
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```
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**Framework + vector-illustration + warm palette**:
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```
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Flat vector framework diagram with geometric nodes and bold connectors.
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PALETTE OVERRIDE (warm): Warm-only color palette, no cool colors.
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COLORS: Soft Peach background (#FFECD2), nodes in Warm Orange (#ED8936),
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Terracotta (#C05621), Golden Yellow (#F6AD55), black outlines
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ELEMENTS: Rounded rectangles or circles for nodes, thick connecting lines
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```
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**Framework + ink-notes + mono-ink palette** (command center, OS analogy):
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```
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Professional hand-drawn sketchnote framework on pure white. Black ink line work
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with slight wobble, à la Mike Rohde sketchnoting.
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PALETTE: mono-ink — black ink dominant, sparse semantic accents
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COLORS: Pure White background (#FFFFFF), Near Black (#1A1A1A) for all lines,
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text, figures; Dusty Lavender (#9B8AB5) for neutral category tags only;
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Coral Red (#E8655A) for emphasis sparingly. Color accents under 10%.
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STRUCTURE: Central rounded-rectangle frame as "the system" with hand-lettered
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title inside. Inner layer of labeled sub-components (node labels
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above each). Outer layer of feeder arrows from stick-figure
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operators/users with role labels.
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ELEMENTS: Stick figures at the edges with role tags ("Team Lead", "Operator"),
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wavy hand-drawn connector arrows with small inline labels, small
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doodle icons per component, dashed-border placeholder(s) for
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future/empty capabilities.
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BOTTOM: Single-line hand-lettered tagline.
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STYLE: Hand-lettered headings, handwritten annotations, generous white space,
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no computer fonts, no gradients.
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```
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### Timeline
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```
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[Title] - Chronological View
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DIRECTION: [horizontal/vertical]
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EVENTS:
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- [Date/Period 1]: [milestone]
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- [Date/Period 2]: [milestone]
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MARKERS: [visual indicators]
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STYLE: [style characteristics]
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ASPECT: 16:9
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```
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### Screen-Print Style Override
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When `style: screen-print`, replace standard style instructions with:
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```
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Screen print / silkscreen poster art. Flat color blocks, NO gradients.
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COLORS: 2-5 colors maximum. [Choose from style palette or duotone pair]
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TEXTURE: Halftone dot patterns, slight color layer misregistration, paper grain
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COMPOSITION: Bold silhouettes, geometric framing, negative space as storytelling element
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FIGURES: Silhouettes only, no detailed faces, stencil-cut edges
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TYPOGRAPHY: Bold condensed sans-serif integrated into composition (not overlaid)
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```
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**Scene + screen-print**:
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```
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Conceptual poster scene. Single symbolic focal point, NOT literal illustration.
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COLORS: Duotone pair (e.g., Burnt Orange #E8751A + Deep Teal #0A6E6E) on Off-Black #121212
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COMPOSITION: Centered silhouette or geometric frame, 60%+ negative space
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TEXTURE: Halftone dots, paper grain, slight print misregistration
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```
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**Comparison + screen-print**:
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```
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Split poster composition. Each side dominated by one color from duotone pair.
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LEFT: [Color A] side with silhouette/icon for [Option A]
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RIGHT: [Color B] side with silhouette/icon for [Option B]
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DIVIDER: Geometric shape or negative space boundary
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TEXTURE: Halftone transitions between sides
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```
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---
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## Palette Override
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When a palette is specified (via `--palette` or preset), it overrides the style's default colors:
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1. Read style file → get rendering rules (Visual Elements, Style Rules, line treatment)
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2. Read palette file (`palettes/<palette>.md`) → get Colors + Background
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3. Palette Colors **replace** style's default Color Palette in prompt
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4. Palette Background **replaces** style's Background color (keep style's texture description)
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5. Build prompt: style rendering instructions + palette colors
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**Prompt frontmatter** includes palette when specified:
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```yaml
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---
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illustration_id: 01
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type: infographic
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style: vector-illustration
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palette: macaron
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---
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```
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**Example**: `vector-illustration` + `macaron` palette:
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```
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Flat vector illustration infographic. Clean black outlines on all elements.
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PALETTE: macaron — soft pastel color blocks
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COLORS: Warm Cream background (#F5F0E8), Macaron Blue (#A8D8EA), Mint (#B5E5CF),
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Lavender (#D5C6E0), Peach (#FFD5C2), Coral Red (#E8655A) for emphasis
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ELEMENTS: Geometric simplified icons, no gradients, playful decorative elements
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```
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When no palette is specified, use the style's built-in Color Palette as before.
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---
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## What to Avoid
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- Vague descriptions ("a nice image")
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- Literal metaphor illustrations
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- Missing concrete labels/annotations
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- Generic decorative elements
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## Watermark Integration (optional)
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If the user asks for a watermark, append:
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```
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Include a subtle watermark "[content]" positioned at [position].
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```
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Reference in New Issue
Block a user