carousel
A horizontal strip on a UI stage: its `items` sit left to right in slots `item_w` + `gap` apart, and a `carousel-scroll` effect slides the strip; a `card` around it masks the strip to its box.
carousel(gap=1 item_h=1 item_w=1)
Attributes
gapnumberSpace between the slots, in stage units (default 20).3×item_hnumberHeight of one slot; each item is centred in its slot (default 260).3×item_wnumberWidth of one slot (default 200).3×xnumberLeft edge of the strip, in stage units (default 80).3×ynumberTop of the strip, in stage units (default 520).3×