Title block

A heading with an optional subtitle. The usual section opener.

Edit the JSON

9:41

Payload#

Field	Type	Default	Description
`title`req	TextData		The heading. Accepts the bare string shorthand.
`subtitle`	TextData		Secondary line under the heading.

Notes#

Title blocks are the natural choice for a section's sticky header slot. Give the header a background in its layout so content scrolling underneath never shows through.