Marp Slide Creator

Create professional, visually appealing Marp presentation slides with 7 pre-designed themes and built-in best practices.

When to Use This Skill

Use this skill when the user:

• •Requests to create presentation slides or Marp documents
• •Asks to "make slides look good" or "improve slide design"
• •Provides vague instructions like "良い感じにして" (make it nice) or "かっこよく" (make it cool)
• •Wants to create lecture or seminar materials
• •Needs bullet-point focused slides with occasional images

Quick Start

Step 1: Select Theme

First, determine the appropriate theme based on the user's request and content.

Quick theme selection:

• •Technical/Developer content → tech theme
• •Business/Corporate → business theme
• •Creative/Event → colorful or gradient theme
• •Academic/Simple → minimal theme
• •General/Unsure → default theme
• •Dark background preferred → dark or tech theme

For detailed theme selection guidance, read references/theme-selection.md.

Step 2: Create Slides

1. •

   Read relevant references first:

   • •Always start by reading references/marp-syntax.md for basic syntax
   • •For images: references/image-patterns.md (official Marpit image syntax)
   • •For advanced features (math, emoji): references/advanced-features.md
   • •For custom themes: references/theme-css-guide.md
2. •

   Copy content from the appropriate template file:

   • •assets/template-basic.md - Default theme (most common)
   • •assets/template-minimal.md - Minimal theme
   • •assets/template-colorful.md - Colorful theme
   • •assets/template-dark.md - Dark mode theme
   • •assets/template-gradient.md - Gradient theme
   • •assets/template-tech.md - Tech/code theme
   • •assets/template-business.md - Business theme
3. •

   Read references/best-practices.md for quality guidelines

4. •

   Structure content following best practices:

   • •Title slide with <!-- _class: lead -->
   • •Concise h2 titles (5-7 characters in Japanese)
   • •3-5 bullet points per slide
   • •Adequate whitespace
5. •

   Add images if needed using patterns from references/image-patterns.md

6. •

   Save to /mnt/user-data/outputs/ with .md extension

Available Themes

1. Default Theme

Colors: Beige background, navy text, blue headings Style: Clean, sophisticated with decorative lines Use for: General seminars, lectures, presentations Template: template-basic.md

2. Minimal Theme

Colors: White background, gray text, black headings Style: Minimal decoration, wide margins, light fonts Use for: Content-focused presentations, academic talks Template: template-minimal.md

3. Colorful & Pop Theme

Colors: Pink gradient background, multi-color accents Style: Vibrant gradients, bold fonts, rainbow accents Use for: Youth-oriented events, creative projects Template: template-colorful.md

4. Dark Mode Theme

Colors: Black background, cyan/purple accents Style: Dark theme with glow effects, eye-friendly Use for: Tech presentations, evening talks, modern look Template: template-dark.md

5. Gradient Background Theme

Colors: Purple/pink/blue/green gradients (varies per slide) Style: Different gradient per slide, white text, shadows Use for: Visual-focused, creative presentations Template: template-gradient.md

6. Tech/Code Theme

Colors: GitHub-style dark background, blue/green accents Style: Code fonts, Markdown-style headers with # symbols Use for: Programming tutorials, tech meetups, developer content Template: template-tech.md

7. Business Theme

Colors: White background, navy headings, blue accents Style: Corporate presentation style, top border, table support Use for: Business presentations, proposals, reports Template: template-business.md

Creating Slides Process

Basic Workflow

1. •

   Understand requirements

   • •Identify content: title, topics, key points
   • •Determine target audience
   • •Assess formality level
2. •

   Select theme

   • •Use quick selection rules above
   • •If uncertain, consult references/theme-selection.md
   • •Default to default theme if still unsure
3. •

   Apply template

   • •Load appropriate template from assets/
   • •CSS is already embedded - no external files needed
   • •Maintain template structure
4. •

   Structure content

   • •Title slide: <!-- _class: lead --> + h1
   • •Content slides: h2 title + bullet points
   • •Keep titles to 5-7 characters (Japanese)
   • •Use 3-5 bullet points per slide
5. •

   Refine quality

   • •Read references/best-practices.md
   • •Ensure adequate whitespace
   • •Maintain consistency
   • •Keep text concise (15-25 chars per line)
6. •

   Add images

   • •If needed, consult references/image-patterns.md
   • •Common: ![bg right:40%](image.png) for side images
   • •Use proper Marp image syntax
7. •

   Output file

   • •Save to /mnt/user-data/outputs/
   • •Use descriptive filename like presentation.md

Handling "Make It Look Good" Requests

When users give vague instructions like "良い感じにして", "かっこよく", or "make it cool":

1. •

   Infer theme from content:

   • •Business content → business theme
   • •Technical content → tech or dark theme
   • •Creative content → gradient or colorful theme
   • •General → default theme
2. •

   Apply best practices automatically:

   • •Shorten titles to 5-7 characters
   • •Limit bullet points to 3-5 items
   • •Add adequate whitespace
   • •Use consistent structure
3. •

   Enhance visual hierarchy:

   • •Use h3 for sub-sections when appropriate
   • •Break up dense text into multiple slides
   • •Ensure logical flow (intro → body → conclusion)
4. •

   Maintain professional tone:

   • •Match formality to content
   • •Use parallel structure in lists
   • •Keep technical terms consistent

Image Integration

For slides with images, consult references/image-patterns.md for detailed syntax.

Common patterns:

• •Side image: ![bg right:40%](image.png) - Image on right, text on left
• •Centered: ![w:600px](image.png) - Centered with specific width
• •Full background: ![bg](image.png) - Full-screen background
• •Multiple images: Multiple ![bg] declarations

Example lecture pattern:

## Slide Title

![bg right:40%](diagram.png)

- Explanation point 1
- Explanation point 2
- Explanation point 3

File Output

Always save the final Marp file to /mnt/user-data/outputs/ with .md extension:

• •presentation.md
• •seminar-slides.md
• •lecture-materials.md

Quality Checklist

Before delivering slides, verify:

• • Theme selected appropriately for content
• • CSS theme is embedded in the file
• • Title slide uses <!-- _class: lead -->
• • All h2 titles are concise (5-7 chars)
• • Bullet points are 3-5 items per slide
• • Images use proper Marp syntax
• • File saved to outputs directory
• • Content follows best practices

References

Core Documentation

• •Marp syntax: references/marp-syntax.md - Basic Marp/Marpit syntax (directives, frontmatter, pagination, etc.)
• •Image patterns: references/image-patterns.md - Official image syntax (bg, filters, split backgrounds)
• •Theme CSS guide: references/theme-css-guide.md - How to create custom themes based on Marpit specification
• •Advanced features: references/advanced-features.md - Math, emoji, fragmented lists, Marp CLI, VS Code
• •Official themes: references/official-themes.md - default, gaia, uncover themes documentation

Quality & Selection Guides

• •Theme selection: references/theme-selection.md - How to choose the right theme for content
• •Best practices: references/best-practices.md - Quality guidelines for "cool" slides

Templates & Assets

• •Templates: assets/template-*.md - Starting points with embedded CSS for each theme (7 themes)
• •Standalone CSS: assets/theme-*.css - CSS files for reference (already embedded in templates)

Official External Links

• •Marp Official Site: https://marp.app/
• •Marpit Directives: https://marpit.marp.app/directives
• •Marpit Image Syntax: https://marpit.marp.app/image-syntax
• •Marpit Theme CSS: https://marpit.marp.app/theme-css
• •Marp Core GitHub: https://github.com/marp-team/marp-core
• •Marp CLI GitHub: https://github.com/marp-team/marp-cli