table.cell.border.color — Specifies the border color of table cells
Set the color of table cell borders. If non-zero, the value is used
for the border coloration. See CSS. A
color is either a keyword or a numerical RGB specification.
Keywords are aqua, black, blue, fuchsia, gray, green, lime, maroon,
navy, olive, orange, purple, red, silver, teal, white, and
yellow.
To control properties of cell borders in HTML output, you must also turn on the
table.borders.with.css parameter.