Unsurprisingly, it is toolbutton.
* that widget is used as the icon. Otherwise, if #GtkToolButton:stock-id is
* non-%NULL, the icon is determined by the stock item. Otherwise,
* the button does not have a icon.
+ *
+ * # CSS nodes
+ *
+ * GtkToolButton has a single CSS node with name toolbutton.
*/
G_TYPE_NONE, 0);
g_type_class_add_private (object_class, sizeof (GtkToolButtonPrivate));
+
+ gtk_widget_class_set_css_name (widget_class, "toolbutton");
}
static void