OK after a lot of searching I came up with this fix for the font size, but im still looking for the font colour fix for the heading on the Links from Categories page.
I found buried really deep at the bottom of my sub_site_html_print_cat in my sites_html_templates.pl this piece of script
# Then we print out the name linked, new if it's new, and popular if its popular.
$output .= qq|<dl><dt><strong><a class="link" href="$url">$category_name</a></strong> <small
class="numlinks">($numlinks)</small> |;
$output .= qq|<small><sup class="new">new</sup></small>| if (&days_old($mod) <
$db_new_cutoff);
$output .= qq|</dt>|;
$output .= qq|<dd><span class="descript">$description </font></span></dd>| if (!($description =~ /^[\s\n]*$/));
$output .= qq|</dl>|;
}
and I added a <font face=.... tag
# Then we print out the name linked, new if it's new, and popular if its popular.
$output .= qq|<dl><dt><strong><a class="link" href="$url">$category_name</a></strong> <small
class="numlinks">($numlinks)</small> |;
$output .= qq|<small><sup class="new">new</sup></small>| if (&days_old($mod) <
$db_new_cutoff);
$output .= qq|</dt>|;
$output .= qq|<dd><span class="descript"><font face="Verdana, Arial, Helvetica, sans-serif"
size="2">$description </font></span></dd>| if (!($description =~ /^[\s\n]*$/));
$output .= qq|</dl>|;
}
That worked a treat.
If anyone knows where to do a similar adjustment for the font colour of my other problem, I would be eternally grateful