 
 
 Before:

(GraphicsLayer
  (anchor 0.00 0.00)
  (bounds 800.00 600.00)
  (children 1
    (GraphicsLayer
      (bounds 800.00 600.00)
      (contentsOpaque 1)
      (children 3
        (GraphicsLayer
          (position 8.00 8.00)
          (bounds 200.00 200.00)
          (drawsContent 1)
        )
        (GraphicsLayer
          (position 212.00 8.00)
          (bounds 202.00 202.00)
          (drawsContent 1)
        )
        (GraphicsLayer
          (position 416.00 8.00)
          (bounds 202.00 202.00)
          (drawsContent 1)
        )
      )
    )
  )
)
After setting 'pointer-events:auto':

(GraphicsLayer
  (anchor 0.00 0.00)
  (bounds 800.00 673.00)
  (children 1
    (GraphicsLayer
      (bounds 800.00 673.00)
      (contentsOpaque 1)
      (children 3
        (GraphicsLayer
          (position 8.00 8.00)
          (bounds 200.00 200.00)
          (drawsContent 1)
          (event region
            (rect (0,0) width=200 height=200)
          )
        )
        (GraphicsLayer
          (position 212.00 8.00)
          (bounds 202.00 202.00)
          (drawsContent 1)
          (event region
            (rect (2,2) width=200 height=200)
          )
        )
        (GraphicsLayer
          (position 416.00 8.00)
          (bounds 202.00 202.00)
          (drawsContent 1)
          (event region
            (rect (2,2) width=200 height=200)
          )
        )
      )
    )
  )
)
After setting 'pointer-events:none':

(GraphicsLayer
  (anchor 0.00 0.00)
  (bounds 800.00 1205.00)
  (children 1
    (GraphicsLayer
      (bounds 800.00 1205.00)
      (contentsOpaque 1)
      (children 3
        (GraphicsLayer
          (position 8.00 8.00)
          (bounds 200.00 200.00)
          (drawsContent 1)
        )
        (GraphicsLayer
          (position 212.00 8.00)
          (bounds 202.00 202.00)
          (drawsContent 1)
        )
        (GraphicsLayer
          (position 416.00 8.00)
          (bounds 202.00 202.00)
          (drawsContent 1)
        )
      )
    )
  )
)