Free, open sourceDense · Dark-first · Slick
Halogen
Get the kitA dense dark-first system for sharp product interfaces, dashboards, and AI tools with contrast, focus, and a technical edge.
How to install
Three ways to add it to your project.
Pick whichever fits your workflow. Same files land in the same place.
Download the kit
Grab a zip and drop the files into your project by hand. The fastest path for designers who just want to inspect the system.
Contribute
Help shape the next release.
Halogen lives on GitHub. Open an issue, send a PR, or fork it for your own system. Pull requests for tokens, components, and prompt improvements are welcome.