color-groups: group-prefs set colors don't take

The git commit should be in the headers.

I noticed immediately after rebuilding (first time with color-groups) 
that the group colors had reverted to black, not so good on a dark 
background, tho it's not black so I could sort of see them.

But I had read about group colors in git whatchanged, so immediately set 
out to fix things.

But while setting the color in group prefs changes it there, hitting done 
doesn't apply that change, and reopening group prefs shows no change.

But editing the xml file by hand (with pan closed) has the desired 
effect.  The (default #000000) colors were stored there, so all I had to 
do was change the existing entries as desired.

So:

1. Please fix group prefs to actually apply the chosen color.

2. Preferably, fix the default so it detects the existing text color and 
defaults to that, not simply to black.  I think you'll have to query gtk 
for it.  But if it's too hard don't bother, just fix the group prefs to 
apply the color correctly and that'll do.

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman