---
root:
  items:
        - type: stacking-context
          bounds: [50, 50, 100, 100]
          items:
            - type: box-shadow
              bounds: [ 10, 10, 80, 80 ]
              blur-radius: 5
              clip-mode: inset
              spread-radius: 20
              color: [0, 0, 0]