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 "make it nice" or "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

   marp/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 "make it feel good/nice", "make it cool/stylish", 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