About themes

A storefront’s appearance is not controlled by one record. The theme holds the markup, but pages and content blocks hold the words and images, menus hold navigation, and the store record ties them together and overrides parts of them.

These two articles cover that picture. Read them first, because most wasted effort in theme work comes from editing the right kind of thing in the wrong place.

In this section

• How stores, themes, and design elements relate — which record controls which part of a page, and why some settings live on the store rather than the theme
• Theme structure and file organization — the directory layout, template key conventions, and how a theme falls back to the base theme for anything it does not supply