(canberra-gtk-play:1659): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(polkit-gnome-authentication-agent-1:1646): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(polkit-gnome-authentication-agent-1:1646): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(polkit-gnome-authentication-agent-1:1646): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(polkit-gnome-authentication-agent-1:1646): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(canberra-gtk-play:1659): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(canberra-gtk-play:1659): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(canberra-gtk-play:1659): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(unity-window-decorator:1729): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(unity-window-decorator:1729): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(unity-window-decorator:1729): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(unity-window-decorator:1729): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(applet.py:1902): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(applet.py:1902): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(applet.py:1902): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(applet.py:1902): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(ubuntuone-launch:1904): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(ubuntuone-launch:1904): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(ubuntuone-launch:1904): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(ubuntuone-launch:1904): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:6206): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:6206): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:6206): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:6206): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(plugin-container:6247): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(plugin-container:6247): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(plugin-container:6247): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(plugin-container:6247): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(update-manager:6654): Gtk-WARNING **: Attempting to add a widget with type aptdaemon+gtk3widgets+AptProgressDialog to a GtkWindow, but as a GtkBin subclass a GtkWindow can only contain one widget at a time; it already contains a widget of type GtkVBox
(gnome-terminal:1790): Gtk-WARNING **: Unknown property: GtkHScale.update-policy
(firefox:9798): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:9798): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:9798): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:9798): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(thunderbird-bin:12055): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(thunderbird-bin:12055): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(thunderbird-bin:12055): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(thunderbird-bin:12055): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(thunderbird-bin:12055): libebook-WARNING **: e_book_client_new: Failed to run book factory: Error calling StartServiceByName for org.gnome.evolution.dataserver.AddressBook1: GDBus.Error:org.freedesktop.DBus.Error.Spawn.ExecFailed: Failed to execute program /usr/lib/evolution/e-addressbook-factory: Success
(firefox:12248): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:12248): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:12248): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:12248): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(plugin-container:12289): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(plugin-container:12289): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(plugin-container:12289): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(plugin-container:12289): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(nautilus:1647): Gtk-CRITICAL **: gtk_list_store_set_valist: assertion `iter_is_valid (iter, list_store)' failed
(firefox:16207): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:16207): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:16207): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:16207): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(thunderbird-bin:16761): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(thunderbird-bin:16761): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(thunderbird-bin:16761): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(thunderbird-bin:16761): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",