Gloam — Dark Theme for Claude Design

About

Gloam gives the Claude Design tool (claude.ai/design) a dark theme that matches Claude's own warm-charcoal palette — while leaving the design preview you're working on pixel-for-pixel untouched.

What it does:

- Darkens only the interface — chat, header, tabs, cards and toolbars. The cross-origin design preview is never modified.
- Value-based, not selector-based — it remaps the page's own colors, so it keeps working across Claude's frequent UI updates.
- One-click toggle from the toolbar. Turn it off and the page is left exactly as it was.

Privacy: the only permission requested is "storage", used solely to remember the on/off state. Nothing is collected or sent anywhere.

Open, unminified source: [github.com/justskiv/gloam-claude-design](https://github.com/justskiv/gloam-claude-design)

Unofficial — not affiliated with or endorsed by Anthropic. "Claude" is a trademark of Anthropic.