Section Groups
Online Store 2.0 section groups let merchants edit the header and footer in
the theme editor like any other section. Citera has two, both rendered from
layout/theme.liquid.
header-group.json
Rendered via {% sections 'header-group' %}. Contains:
announcement-bar— dismissible top message with optional end date/time, color scheme and uppercase toggle.header— logo, desktop menu (with mega-dropdown support), mobile drawer nav, and the search / account / cart icons.
footer-group.json
Rendered via {% sections 'footer-group' %}. Contains:
footer— link columns (viamenublocks), an abouttextblock, and an optional payment-icons row.
Editing them
These are JSON files, but you rarely edit them by hand — open the theme editor
and pick Header or Footer from the section-group dropdown at the top of
the page. Changes save back into these files (and into
config/settings_data.json for values).
See the individual sections under Sections → Global for their full settings and blocks.