Defalt builds Source themes without touching Handlebars.

Design, preview, export

Rearrange sections, tweak typography, and adjust spacing visually. The editor keeps pace with every change, rendering the Source theme live in your browser.

When you're ready, Defalt bundles your configuration into a production-ready ZIP that drops straight into Ghost. No command line, no local build.

The fast iteration loop lets you experiment freely while the exported theme stays clean, fast, and identical to Source under the hood.

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