in dZSbot the cookie for color is %color...
for example: %color7
set announce(NEWDIR) "\[%color4%section%color\] + New Release: %path/%bold%release%bold (%color7%relname%color) by %bold%user%bold@%group"
the first color is for active the color (7 is orange 4 is red and so on) the second %color is for dectivated the color cookie 8)))))
enjoy