#include <vector>
#include <string>
+#include <gtkmm/box.h>
+#include <gtkmm/button.h>
+#include <gtkmm/buttonbox.h>
+#include <gtkmm/comboboxtext.h>
#include <gtkmm/checkbutton.h>
+#include <gtkmm/expander.h>
+#include <gtkmm/notebook.h>
#include <gtkmm/spinbutton.h>
-#include <gtkmm/comboboxtext.h>
#include <gtkmm/table.h>
-#include <gtkmm/expander.h>
-#include <gtkmm/box.h>
-#include <gtkmm/buttonbox.h>
-#include <gtkmm/button.h>
#include "pbd/signals.h"