A list heading (LH) may be included
before the first list item. The SRC attribute identifies a
graphic image to be used as a bullet, while the DINGBAT
attribute identifies an iconic entity for the bullet. The
PLAIN attribute specifies not to use a bullet on each
item. The WRAP attribute is either VERT or
HORIZ, and indicates multiple columns of data. VERT
indicates that the data is to go down the page and then wrap to the next
column, and HORIZ indicates that the data is to wrap across each
row.
The TYPE attribute specifies the bullet type; type can be
DISC, CIRCLE, or SQUARE.