--- root: items: - bounds: [200, 200, 1000, 1000] type: "stacking-context" perspective: 256 items: - bounds: [0, 0, 100, 100] type: "stacking-context" snapshot: name: "snap0" area: [0, 0, 100, 100] items: - image: snapshot(snap0) bounds: [10, 10, 200, 200]