fill    (Unknown Method)
    Call   [Rectangle.java, 52]   model.Rectangle.draw
    Call   [ShapeShadingStrategy.java, 45]   model.strategy.ShapeShadingStrategy.draw
    Call   [ShapeShadingStrategy.java, 51]   model.strategy.ShapeShadingStrategy.draw

fillOval    (Unknown Method)
    Call   [Ellipse.java, 48]   model.Ellipse.draw
    Call   [Ellipse.java, 54]   model.Ellipse.draw

fillRect    (Unknown Method)
    Call   [Rectangle.java, 64]   model.Rectangle.draw
    Call   [Rectangle.java, 70]   model.Rectangle.draw

filter    (Unknown Method)
    Call   [ShapeUngroupCommand.java, 21]   model.commands.ShapeUngroupCommand.ShapeUngroupCommand