Created attachment 14192 [details]
16x16 pixel menu icon for Group in png format

Created attachment 14193 [details]
16x16 pixel menu icon for Ungroup in png format

sorry, this wont happen anytime soon, setting to enhancement to get it
out of my way while fixing 'real' bugs, oh : patches accepted ;)

Adding PATCH keyword to remind me to use these (even though they're
not patches!)

Requires getting the image into the menu, not obvious what the right
way is, leaving for now, patches welcome.

Non-obvious what kind of image struct goes into an ImageItem in GTK. 
Leaving alone for now.

Needs more program support, which isn't totally trivial.

would it help if I converted these to XPM or some other format?  

No, I'm trying to get rid of the xpms.  I've made an attempt at getting
gdk-pixbuf-csource'd images into the toolbox (see create_tools in
app/interface.c), but so far it fails miserably for no obvious reason.  Grumpf.
 Would very much like to have it in 0.95.

Now applied, with gdk-pixbuf-csource'd images, putting images in menus turned
out to be real easy.