The theme editor

The theme editor is a tool that lets merchants customize the content and appearance of their store, and preview changes to their theme in real time.

As a theme developer, you can allow merchants to customize their theme in the theme editor by introducing settings, and by dividing your theme functionality into modular sections and blocks.

You need to integrate your theme with the theme editor to create a seamless editing experience for merchants. In the theme editor preview, the merchant should see exactly what will appear in the storefront when the theme is live.

The theme editor in the Shopify admin