;;; Post-conditions:
;;;  drawing-hshift moves the drawing to the left or right depending on the value given
;;;  drawing-vshift moves the drawing to the up or down depending on the value given
;;;  drawing-hscale stretches the drawing horizontally to provide the drawing with its width
;;;  drawing-vscale stretches the drawing vertically to provide the height of the drawing
;;;  drwaing-recolor gives the drawing the color based on the choice of color desired in the list of default colors