From http://www.w3schools.com (Copyright Refsnes Data)
Graphic Bullets Transparent
Contains small bullets that can be used with any background color.
Graphic Bullets White
Contains small bullets that can be used with white background color.
Graphic Arrows
Contains navigation arrows.
Graphic Dividers Basic
Contains small line dividers.
Graphic Dividers Fancy
Contains fancy but small line dividers.
Graphic Links
Contains links to other graphic resources on the Internet.
From http://www.w3schools.com (Copyright Refsnes Data)