Using the theme editor
The theme editor is a tool for changing and previewing theme settings in real-time. Merchants access the theme editor by clicking Customize for a theme on the Themes page of their Shopify admin.
Editing theme sections
You can choose the type of content to display in a theme by using sections, which are Liquid template files. Sections define the elements of a page layout, such as slideshows, text blocks, newsletter signups, and collection images.
Editing theme settings
If you're a theme author, then you can edit
settings_schema.json or your Liquid section files to create or change options in the theme editor:
settings_schema.jsonfile in the
configdirectory of your theme, or edit the relevant
.liquidfile in the
sectionsdirectory of your theme. Follow the specified format.
Edit your other theme files to access the settings that you've defined.
Theme settings that a merchant configures using the theme editor are saved in
settings_data.json in the
config directory of their store theme.