#include <gtk/gtk.h>

void on_ok_button_clicked(GtkButton * button, gpointer user_data);

void on_apply_button_clicked(GtkButton * button, gpointer user_data);

void on_cancel_button_clicked(GtkButton * button, gpointer user_data);

void on_theme_list_select_changed(GtkTreeSelection * select,
				  gpointer data);