l_colors.asp">
http://www.w3schools.com/html/html_colors.asp</a>) or by a few names for convenience 
(black, white, red, green, blue, magenta, cyan, yellow, gray).
A note on hex encoding:  since people are so used to it from HTML, we allow a leading pound sign 
(<i>e.g.,</i> "<tt>-color #a02ce8</tt>"). However, if put in scripts for shells based on <b>sh</b>
the pound can be taken as the beginning of a comment block.  So either avoid the pound, use a
non-sh shell, or put the argument in quotes.</p>

<p>The 