New Sketch

By Joseph Johnson
shadow = color(r=2,g=48,b=71,a=0.75)
background = circle(r=500, fill=shadow, stroke='none')
canvas = circle(r=150, fill='#fffffc', stroke='none')
show(background, canvas)`

def square(side, fill)
    return rectangle(w=side, h=side, stroke='none', fill=fill)

large_rect1 = square(side=10, fill='black')
show(large_rect1)