AccumulatedVisualContext Tree:
  [0] transform=[1,0,0,1,0,0] origin=(0,0) (ViewportPaintable(Viewport<#document>))
    [1] scroll (PaintableWithLines(BlockContainer<PRE>#out))

DisplayList:
SaveLayer@0
  CompositorWheelHitTestTarget@0 target_scroll_node_index=0 rect=[0,0 800x600]
  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[0,0 800x181]
  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,8 784x160]
  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,8 120x80]
  FillPath@1 path_bounding_rect=[8,8 120x80]
  Save@1
    AddClipPath@1 path_bounding_rect=[8,8 10x80]
    StrokePath@1 path_bounding_rect=[8,3 10x90] thickness=10 color=rgb(255, 0, 0) dash_array_size=2 dash_offset=10.00
  Restore@1
  CompositorWheelHitTestTarget@1 target_scroll_node_index=0 rect=[8,88 120x80]
  Save@1
    AddClipPath@1 path_bounding_rect=[8,88 120x10]
    StrokePath@1 path_bounding_rect=[3,88 130x10] thickness=10 color=rgb(255, 0, 0) dash_array_size=2 dash_offset=10.00
  Restore@1
  FillPath@1 path_bounding_rect=[8,88 120x80]
Restore@0

