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