Represents a secondary grouping within a main category (Level 2). Can optionally contain a background image for rich UI displays and a list of specific SubItems. *
Optional
Optional URL path to a background image used when this subcategory is active.
Optional array of Level 3 items belonging to this subcategory.
The display name of the subcategory (e.g., "Fruits and vegetables").
Represents a secondary grouping within a main category (Level 2). Can optionally contain a background image for rich UI displays and a list of specific SubItems. *