This is a Marketing Section — it does not exist in Shopify’s default emails. You control it live: change text, enable or disable per template, no re-export needed. See What are Marketing Sections? for an overview.
Promote gift cards directly in your notification emails with a heading, description, and a buy button.
Use case
Before Christmas or Mother’s Day: enable the Gift Card section across all templates. After the holiday: set it to Hidden. No re-export, no code.
What you can customize
Heading
Description
Button text and link — links to your gift card page