Understanding Shopify Sections
The 'section' is the modular building block of modern Shopify themes. They are reusable components that can be placed anywhere on a page template.
The Schema File: Your Customizer Blueprint
Every section has a JSON schema that defines the options available in the editor (text fields, color pickers, etc.). We show how to add a new setting to control, for example, the heading size of a specific section.
Connecting Schema to Liquid Output
If you add a setting for 'Primary Color' in the schema, you must reference it in the Liquid file using `section.settings.primary_color`. This link is the core of low-code theme extension on Shopify.
Always duplicate the theme before making structural edits to sections, adhering strictly to the ThemeLower safety protocol.