(Rim
  (Pen 2)
  (VBox
    (HBox
      (Button %reparse "Reparse")
      (Glue 4)
      (Button %step "Step")
      (Glue 4)
      (Button %run "Run")
      (Glue 4)
      (Button %exit "Exit")
      Fill)
    (Glue 2)
    (VTile
      (Shape
        (Height 35 + Infinity)
        (Width 450 + Infinity)
        (Frame Lowered (Browser %procedures Quick)))
      (Shape
        (Height 35 + Infinity)
        (Width 450 + Infinity)
        (Frame Ridged (TextEdit %typescript ReadOnly))))))