Theme Factory - Claude Skill for Artifact Themes

Source: Content adapted from anthropics/skills (MIT). Last synced July 8, 2026, against the April 20, 2026 upstream update.

Overview

The official description: "Toolkit for styling artifacts with a theme. These artifacts can be slides, docs, reports, HTML landing pages, etc. There are 10 pre-set themes with colors/fonts that you can apply to any artifact that has been created, or can generate a new theme on-the-fly."

How the skill works

The workflow is deliberately simple: pick (or generate) a theme, then apply its palette and type pairing to whatever artifact Claude just built. The SKILL.md covers usage instructions, the theme catalog, per-theme details, the application process, and how to create a custom theme when none of the presets fit.

The 10 built-in themes

Each theme ships as its own markdown spec under themes/:

arctic-frost, botanical-garden, desert-rose, forest-canopy, golden-hour, midnight-galaxy, modern-minimalist, ocean-depths, sunset-boulevard - plus a showcase PDF (theme-showcase.pdf) that previews them side by side.

What's inside the skill folder

• SKILL.md - selection and application logic
• themes/*.md - 10 theme specs (colors, fonts, styling notes)
• theme-showcase.pdf - visual preview of every preset
• LICENSE.txt

Key takeaways for your own skills

• Shipping data as files (10 theme specs) instead of inlining everything keeps the skill's context footprint small - Claude loads only the theme it needs.
• A visual showcase asset lets users choose by looking rather than reading hex values.

See it on GitHub

skills/theme-factory