Highlights Scrolling Text

Name: Highlights Scrolling Text
Namespace and key: custom.highlights_scrolling_text
Type: Single line text - One value

In product setting:

Result:

Choosing the metafield (version 1.3.0)

Theme settings -> Product cards reads this content through the Scrolling text metafield setting. The default key is custom.highlights_scrolling_text.

Keep the default key above and it works with no extra setup.
Or rename it: create the metafield under your own namespace.key, then set Scrolling text metafield to match.

See How to setup Metafield in version 1.3.0? for details.