Is there any documentation for meld?

[Grant Edwards <grant b edwards gmail com>]

I've been using meld for some time, and have figured out most
of the features.  But now I'm stuck: I can't figure out what
the red dot on a folder/file icon means.  There doesn't seem to
be a man page (at least not on Gentoo), "Help/Contents" has
never worked, and I can't find any documenation on the Meld web
site.  So I've got two questions:

 1) Is there a manual or any documentation?

 2) What does the red dot mean. 

-- 
Grant Edwards                   grante             Yow! It's OKAY -- I'm an
                                  at               INTELLECTUAL, too.
                               visi.com