As a workaround I executed as root
cd /usr/share/glade3/pixmaps
cp /usr/share/icons/hicolor/index.theme .
gtk-update-icon-cache -qf /usr/share/glade3/pixmaps/hicolor/
Not really sure why it worked but I found out looking at strace output.
--
glade-3 package missing icons
https://bugs.launchpad
I have installed glade and all dependencies on kubuntu and I get the same
problem.
I have all the icons glade cannot find.
strace shows that the problem is in the search path
stat64("/home/igor/.icons/oxygen", 0xbfab3bc8) = -1 ENOENT (No such file or
directory)
stat64("/home/igor/.local/share/ic