Scrolling content
Fixed background

(Frame scrolling node
  (scrollable area size 800 600)
  (contents size 800 600)
  (scrollable area parameters 
    (horizontal scroll elasticity 2)
    (vertical scroll elasticity 2)
    (horizontal scrollbar mode 0)
    (vertical scrollbar mode 0))
  (Scrolling on main thread because: Has slow repaint objects)
  (layout viewport at (0,0) size 800x600)
  (min layout viewport origin (0,0))
  (max layout viewport origin (0,0))
  (behavior for fixed 0)
  (children 1
    (Overflow scrolling node
      (scrollable area size 405 305)
      (contents size 410 1020)
      (scrollable area parameters 
        (horizontal scroll elasticity 0)
        (vertical scroll elasticity 0)
        (horizontal scrollbar mode 0)
        (vertical scrollbar mode 0)
        (has enabled horizontal scrollbar 1)
        (has enabled vertical scrollbar 1))
      (Scrolling on main thread because: Has slow repaint objects)
    )
  )
)