diff --git a/src/ui/contain.c b/src/ui/contain.c
index 547e609..74fcdc7 100644
--- a/src/ui/contain.c
+++ b/src/ui/contain.c
@@ -179,21 +179,19 @@ void window_bar(GtkWindow *window, char *title){
 }
 
 void experimental_activate_00 (GtkApplication *app, GtkWindow *window) {
-//  window_bar (window, "E coli   (with permission from David S. Goodsell, 2009)");
-  GtkWidget *my_header_bar = gtk_header_bar_new ();
-  gtk_header_bar_set_title_widget (GTK_HEADER_BAR (my_header_bar), GTK_WIDGET (gtk_label_new ("E coli   (with permission from David S. Goodsell, 2009)")));
+  GtkWidget *header_bar = gtk_header_bar_new ();
+  GtkWidget *title = GTK_WIDGET (gtk_label_new ("GemGraph 0.1.0"));
+             title = GTK_WIDGET (gtk_label_new ("E coli   (with permission from David S. Goodsell, 2009)"));
+  gtk_header_bar_set_title_widget (GTK_HEADER_BAR (header_bar), title);
   GtkWidget *run_edit = gtk_toggle_button_new ();
   gtk_button_set_icon_name (GTK_BUTTON (run_edit), "document-edit-symbolic");
   gtk_button_set_icon_name (GTK_BUTTON (run_edit), "system-run-symbolic");
-//  gtk_toggle_button_set_active (run_edit, TRUE);
-gtk_actionable_set_action_name (run_edit, "app.togglerunedit");
-//  gtk_actionable_set_action_target_value (GTK_WIDGET (run_edit), "togglerunedit"); // ui_toggle_run_edit()   GVariant
-  gtk_header_bar_pack_start (GTK_HEADER_BAR (my_header_bar), run_edit);
-  gtk_window_set_titlebar (window, my_header_bar);
-
+  gtk_actionable_set_action_name (GTK_ACTIONABLE (run_edit), "app.togglerunedit");
+  gtk_header_bar_pack_start (GTK_HEADER_BAR (header_bar), run_edit);
+  gtk_window_set_titlebar (window, header_bar);
 
   GtkNotebook *run_notebook = GTK_NOTEBOOK (gtk_notebook_new());
-//  gtk_notebook_set_tab_pos (run_notebook, GTK_POS_TOP);  //   TOP par défaut ?  sinon : GTK_POS_LEFT
+//  gtk_notebook_set_tab_pos (run_notebook, GTK_POS_TOP);  //   TOP par défaut, I presume.  Sinon : GTK_POS_LEFT
 
   gtk_notebook_append_page (run_notebook, get_run_space_page_new(),   gtk_label_new ("space"));
   gtk_notebook_append_page (run_notebook, get_run_rules_page_new(),   gtk_label_new ("rules"));
@@ -203,7 +201,6 @@ gtk_actionable_set_action_name (run_edit, "app.togglerunedit");
   gtk_notebook_append_page (run_notebook, get_run_help_page_new(),    gtk_label_new ("help"));
 
   GtkNotebook *edit_notebook = GTK_NOTEBOOK (gtk_notebook_new());
-//  gtk_notebook_set_tab_pos (edit_notebook, GTK_POS_TOP);   //   TOP par défaut,  I presume
 
   gtk_notebook_append_page (edit_notebook, get_edit_space_page_new(),   gtk_label_new ("space"));
   gtk_notebook_append_page (edit_notebook, get_edit_rules_page_new(),   gtk_label_new ("rules"));
diff --git a/src/ui/display.c b/src/ui/display.c
index d1ac1b1..0574b01 100644
--- a/src/ui/display.c
+++ b/src/ui/display.c
@@ -99,10 +99,7 @@ static GtkWidget *get_scroll_speed(){
   const gchar *new_name = "new_name"; gtk_widget_set_name (scroll_speed, new_name);
 //  const GtkWidgetPath* gtk_style_context_get_path (GtkStyleContext* context);
 //  GtkStyleContext *my_context = gtk_style_context_new ();
-  gtk_style_context_set_state (gtk_widget_get_style_context (scroll_speed), 100);
-  if (0) printf("display.get_scroll_speed() gtk_style_context_get_state (gtk_widget_get_style_context (scroll_speed)) = %d\n",\
-          gtk_style_context_get_state (gtk_widget_get_style_context (scroll_speed)));
-
+//  gtk_style_context_set_state (gtk_widget_get_style_context (scroll_speed), 100);
   return scroll_speed;
 }