Just a reminder to whoever is going to fix this on the Ubuntu side: according to bug 842187, Ubuntu includes an xpm (I assume as fallback if there is no libpng) that also needs to be replaced in addition to the png.
Does the Ubuntu start menu / window switcher support SVG in /usr/share/pixmaps?
(As for GNOME 3, SVG didn't seem to work, but I'm not sure I tested properly due to caching.)
Just a reminder to whoever is going to fix this on the Ubuntu side: according to bug 842187, Ubuntu includes an xpm (I assume as fallback if there is no libpng) that also needs to be replaced in addition to the png.
Does the Ubuntu start menu / window switcher support SVG in /usr/share/pixmaps?
(As for GNOME 3, SVG didn't seem to work, but I'm not sure I tested properly due to caching.)