visual-style

name

visual-style

description

Create, extract, and apply portable visual design systems via visual-style.md files. Use when: (1) Creating a visual-style.md design system from scratch, (2) Extracting a visual style from a website URL, video, or PDF brand guide, (3) Applying a visual style to HeyGen videos, HTML slides, Figma, or paper.design, (4) Browsing the gallery of pre-built visual styles (Swiss, Saul Bass, Game Boy, etc.), (5) User mentions "visual style", "design system", "brand style", or "style guide", (6) Styling a HeyGen video with a consistent design language.

Visual Style

Create, extract, and apply portable visual design systems. A visual-style.md file defines colors, typography, layout, motion, and mood in one file that any AI tool can consume.

Quick Reference

Mode	Trigger	What it does
Create	"Create a visual-style.md for..."	Build a style from scratch via guided prompts
Extract	"Extract a visual-style.md from [URL/image/video]"	Analyze a source and generate a style file
Apply	"Apply this visual-style.md to [tool]"	Use a style with a specific connector
Gallery	"Show me available visual styles"	Browse and use example styles

Default Workflow

Create

1. Gather vibe — Ask about mood, era, references, inspiration
2. Define colors — Primary (2+), accent, neutrals with hex values and roles
3. Set typography — Display, body, caption families + weight/style rules
4. Layout & motion — Grid system, transitions, pacing
5. Generate — Output complete visual-style.md using references/templates/minimal.visual-style.md or references/templates/full.visual-style.md
6. Preview — Show a small HTML swatch or describe the visual result
7. Optionally apply — Ask if user wants to use it with a connector

Questions to batch:

1. What's the vibe? (mood keywords, era, references)
2. Any specific colors? (or derive from the vibe?)
3. Typography preference? (clean, editorial, technical, playful?)
4. What tool will you use this with? (HeyGen, slides, paper.design, Figma?)

Extract

1. Receive source — URL, image, video, or PDF
2. Load extractor — Read the appropriate extractor reference file
3. Analyze — Identify colors, typography, layout, motion, mood
4. Generate — Output complete visual-style.md with source_url set
5. Validate — Ensure all required fields are present

Apply

1. Read the style — Load the visual-style.md file
2. Ask which connector — Or detect from context
3. Load connector — Read the appropriate connector reference file
4. Transform — Map style fields to tool-specific format
5. Generate output — Produce tool-ready instructions or code

Gallery

1. List styles — Show available styles from references/gallery/
2. Preview — Describe the selected style's visual character
3. Load — Read the full visual-style.md
4. Apply — Use with a connector

Format Quick Reference

Required fields

name: "Style Name"
version: "1.0"
style_prompt_short: "1-2 sentence elevator pitch"
style_prompt_full: "Detailed generation prompt — THE most important field"
colors:
  primary:
    - name: "Color Name"
      hex: "#000000"
      role: "how this color is used"

style_prompt_full is king. If a tool can only read one field, it reads this one. Everything else is structured data for tools that want finer control.

Full spec: references/spec.md

Reference Files

Connectors (Apply mode)

Connector	Use case	File
HeyGen Video Agent	AI video generation	references/connectors/heygen-video-agent.md
HTML Slides	Web presentations	references/connectors/html-slides.md
paper.design	Design documents	references/connectors/paper-design.md
Figma	Design tool styles	references/connectors/figma.md

Extractors (Extract mode)

Source	File
Website URL	references/extractors/from-website.md
Video keyframes	references/extractors/from-video.md
PDF / Brand guide	references/extractors/from-pdf.md

Gallery (pre-built styles)

Style	Era	File
Müller-Brockmann Swiss	1950s–70s	references/gallery/mueller-brockmann-swiss.visual-style.md
Neville Brody Industrial	Late 1980s–90s	references/gallery/neville-brody-industrial.visual-style.md
Saul Bass Cinematic	1950s–60s	references/gallery/saul-bass-cinematic.visual-style.md
Game Boy Color	1998–2003	references/gallery/game-boy-color.visual-style.md
HeyGen AI Video	2020s	references/gallery/heygen-ai-video.visual-style.md

Templates & Spec

• references/templates/minimal.visual-style.md — Bare minimum template
• references/templates/full.visual-style.md — Complete template with all fields
• references/spec.md — Full format specification

Best Practices

1. style_prompt_full is king — Always usable as a standalone generation prompt
2. One style, one file — No multi-style bundling
3. Assets are URLs — Never embed binary data
4. Show, don't tell — Generate previews when creating styles
5. Opinionated defaults, flexible extensions — Core schema is fixed; x_* for tool-specific config