Many of the images in this section have transparent backgrounds and have been
anti-aliased for a dark-colored or light-colored background. If an image that was
designed for a dark background is placed against a light color, it will appear to
have a dark, jagged edge. (See an example.) Similarly,
an image that is anti-aliased for a light background will have a jagged white edge
when placed against a dark color. To make your page look its best, be sure to choose
the correct version of the image you want.