[Solved][Gnome] Where is the icon stored?

I wanted to assign the icon of the program ggreeter (the one you can find on the desktop, with the openSUSE logo) to another program, but I’m not able to find where in the filesystem this icon is located.
Any help?

Ok… as it often happens, even though I’ve searched for an hour before posting the thread, one minute after posting it I found the answer: