formatters: output of progress colors `specify` descriptions.

* lib/specl/color.lua (h1, h2, h3): Make h1 bright blue, and
shuffle the former values of h1 & h2 into h2 & h3, resp.
(colormap): Adjust entries to use these settings to output the
same color-scheme, except `specify` which is now `h1` colored.

Signed-off-by: Gary V. Vaughan <gary@gnu.org>