---
root:
  items:
    - type: stacking-context
      bounds: [0, 0, 100, 100]
      items:
      - type: rect
        bounds: [0, 0, 320, 250]
        color: [100, 50, 10]
      # snap0 from the test case
      - type: rect
        bounds: [10, 20, 80, 180]
        color: [200, 200, 200]
      - type: rect
        bounds: [10, 20, 80, 100]
        color: [0, 150, 0]
      - type: rect
        bounds: [10, 110, 80, 90]
        color: [150, 0, 0]
      # snap1 from the test case
      - type: rect
        bounds: [150, 0, 120, 220]
        color: [200, 200, 200]
      - type: rect
        bounds: [160, 10, 90, 100]
        color: [0, 150, 0]
      - type: rect
        bounds: [170, 110, 90, 100]
        color: [150, 0, 0]