Write a program to display a two-dimensional,
grayscale “target” scene, where the target is made
up of a small, filled central circle and two concentric rings around the circle spaced as far apart as
their thickness, which should be equal to the radius of the inner circle. The circle and rings are to
be described as point patterns on a white background. The rings/circle should ”fade in” from
their outer edges so that the inner portion of the
shape is darker than the outer portion. This can be
achieved by varying the sizes and inter-point spacing of the points that make up the rings/circle. For
example, the edges of a ring can be modeled with
small, widely spaced, light-gray points, while the
inner portion can be modeled with larger, more
closely spaced, dark-gray points.