Is information on variable fonts included?

Yes, it details the variable axes for Weight, Width (Condensed to Expanded), and Optical Sizes introduced in recent WWDC sessions.

Does it support internationalization?

Yes, it includes guidance for bidirectional text, complex scripts like Kannada and Arabic, and language-aware line breaking for CJK and European languages.

What Apple platforms does this typography guide cover?

The skill provides reference data for iOS, iPadOS, macOS, tvOS, watchOS, and visionOS, including the latest updates through iOS 26.

How does this help with SwiftUI AttributedString issues?

It specifically addresses the common issue where .font() modifiers override AttributedString paragraph styles, providing the correct pattern to preserve fine-grained typography.

What font families are included in the reference?

It covers SF Pro, SF Compact, SF Mono, New York (serif), and variants like SF Pro Rounded and SF Arabic.

Apple Typography Reference

Name: Apple Typography Reference
Author: CharlesWiltgen

byCharlesWiltgen

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233

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Mobile Development

Provides a comprehensive technical reference for Apple platform typography including San Francisco fonts, Dynamic Type, and SwiftUI text styling.

This skill serves as an exhaustive technical guide for developers building on Apple platforms (iOS, iPadOS, macOS, tvOS, watchOS, and visionOS) up to iOS 26. It covers the entire San Francisco font ecosystem, including variable font axes (Weight, Width, and Optical Size), and provides detailed implementation patterns for Dynamic Type, tracking, and leading. Additionally, it addresses complex internationalization requirements and provides critical troubleshooting advice for maintaining paragraph styles within SwiftUI AttributedStrings.

Key Features

01Size-specific tracking and leading tables for optimal legibility across all platforms.

02Best practices for international scripts and language-aware line breaking.

03System text style mapping and Dynamic Type scaling patterns for UIKit and SwiftUI.

04Variable font axis implementation guides for weight, width, and optical sizing.

05Complete San Francisco font system reference including SF Pro, Compact, Mono, and New York.

06233 GitHub stars

Use Cases

01Implementing accessible and professionally scaled typography using Dynamic Type.

02Optimizing UI text for international audiences using script-specific line height adjustments.

03Debugging layout issues where SwiftUI AttributedString paragraph styles are lost.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add charleswiltgen/axiom axiom-typography-ref

For use in Claude.ai and ChatGPT

Download Skill