The name under the icon in the grab makes me think you have set the default terminal to Terminator and are . What does the icon look like if you launch Terminator with it's own name/icon/shortcut? My initial suspicion is that the name is confusing the icon picker of the GNOME Shell, and it is grabbing the one assigned to the window. I know for a fact we ship 128x128 icons, and a scalable svg one. But I'm not sure how GNOME Shell retrieves the icon for use in the picker.
The name under the icon in the grab makes me think you have set the default terminal to Terminator and are . What does the icon look like if you launch Terminator with it's own name/icon/shortcut? My initial suspicion is that the name is confusing the icon picker of the GNOME Shell, and it is grabbing the one assigned to the window. I know for a fact we ship 128x128 icons, and a scalable svg one. But I'm not sure how GNOME Shell retrieves the icon for use in the picker.