root:
  items:
    -
      bounds: [0, 0, 200, 200]
      image: checkerboard(2, 16, 12)
      stretch-size: 200 200
      prefer-compositor-surface: true
    - type: rect
      bounds: [0, 0, 200, 200]
      color: [255, 0, 0, 0.5]
