Optional reducton of colors in chat

[Sadrul Habib Chowdhury]

* Ka-Hing Cheung had this to say on [14 Mar 2009, 11:44:29 -0700]:
> On Wed, 2009-03-11 at 11:06 +0100, Mattias Eriksson wrote:
> > Hi, 
> > 
> > Here is a new updated version of my patch against pidgin 2.5.5
> > It adds a preference to use a single color for all nicks in multiuser
> > chats.
> > The last time I sent it nobody even looked at it, so I'm hoping for
> > better luck this time.
> 
> We used to have a preference for this, but it was removed when we tried
> to cut down the number of preferences. I think this is a reasonable
> option, what do others think?

I still think it's a good idea to allow specifying the list of colors to
choose from in the GTK+ theme. We should continue to use the currently
used generated-list only when there's nothing specified in the theme.

Sadrul