This icon is not part of the xdg icon scheme. The programs in question are at fault in this case, as they don't depend on either gnome-icon-theme or humanity-icon-theme. Alternatively they could use the standard "unknown" icon that all xdg-compliant icon themes have.
This icon is not part of the xdg icon scheme. The programs in question are at fault in this case, as they don't depend on either gnome-icon-theme or humanity- icon-theme. Alternatively they could use the standard "unknown" icon that all xdg-compliant icon themes have.