# IntroItem

The dressing of one row (chapters section) or card (collections section) of a chapter's front matter. An entry that sets nothing is dropped.

Group: Chapters.

## Fields

- `collectionId` (string, required): The chapter (chapters section) or plain collection (collections section) of this guide the entry dresses, once per section.
- `title` (string, optional): The name on the row or card, at most 120 characters. Absent means the chapter's or collection's name.
- `line` (string, optional): Chapters sections only: the short line under the name, at most 200 characters. Absent means the chapter's description.
- `color` (string, optional): Chapters sections only: the row's color bar as #rrggbb (stored lower case).
- `photoStorageId` (string, optional): Collections sections only: the card photo, a storageId from an upload with target=blob. Absent means the collection's cover.
- `photoCredit` (string, optional): The card photo's credit, at most 80 characters. Kept only with a photo.