In a shape, we can add
a fill() instead of a stroke().
This would add a black background colour
to the shape. Take a look:
It doesn't even matter
if we have a closed shape. The
fill() method will try to
close the shape for you and
then fill it. Take a look at
a shape, once created with
stroke() and then with fill().
The shapes are the same.
You can see that even though
the shape isn't closed, fill()
works out for us.