diff --git a/display.c b/display.c
index 81a8665..2804984 100644
--- a/display.c
+++ b/display.c
@@ -68,6 +68,12 @@ GtkWidget *get_image_AMP(){
   return image;
 }
 
+GtkWidget *get_user_tree(){
+  GtkWidget *image = gtk_picture_new_for_filename ("/home/jean/01/Gtk4/Getting_Started_with_GTK/image/arbre utilisateur.png");
+  gtk_widget_set_size_request (GTK_WIDGET (image), W_IMAGE_LOCAL, H_IMAGE_LOCAL);
+  return image;
+}
+
 //------------------------------------------------------------------------------
 
 //  TODO  cliquer sur "RUN"  -->  affiche "STOP"  (et inversement)
diff --git a/display.o b/display.o
index b2015ba..babc8e9 100644
Binary files a/display.o and b/display.o differ
diff --git a/hot.c b/hot.c
index 1e32625..35b0d41 100644
--- a/hot.c
+++ b/hot.c
@@ -48,14 +48,41 @@ GtkWidget *get_selected_rules_vpaned_new(){
   return GTK_WIDGET (V_selected_1_vs_2);
 }
 
+GtkBox *get_rules_user_tree_new(){
+  GtkBox *tree_sketch = GTK_BOX(gtk_box_new (GTK_ORIENTATION_VERTICAL, 2));
+  gtk_box_append (tree_sketch, GTK_WIDGET(gtk_separator_new (GTK_ORIENTATION_HORIZONTAL)));
+  gtk_box_append (tree_sketch, GTK_WIDGET (get_user_tree()));
+  gtk_box_append (tree_sketch, GTK_WIDGET(gtk_separator_new (GTK_ORIENTATION_HORIZONTAL)));
+  return tree_sketch;
+}
+
+GtkBox *get_rules_comparator_new(){
+  GtkBox *comparator = GTK_BOX(gtk_box_new (GTK_ORIENTATION_VERTICAL, 2));
+  gtk_box_append (comparator, GTK_WIDGET (get_image_ATP()));
+  gtk_box_append (comparator, GTK_WIDGET(gtk_separator_new (GTK_ORIENTATION_HORIZONTAL)));
+  gtk_box_append (comparator, GTK_WIDGET (get_image_AMP()));
+  gtk_box_append (comparator, GTK_WIDGET(gtk_separator_new (GTK_ORIENTATION_HORIZONTAL)));
+  gtk_box_append (comparator, GTK_WIDGET (get_image_GLUTAMATE()));
+  gtk_box_append (comparator, GTK_WIDGET(gtk_separator_new (GTK_ORIENTATION_HORIZONTAL)));
+  gtk_box_append (comparator, GTK_WIDGET (get_image_GLUTAMINE()));
+  gtk_box_append (comparator, GTK_WIDGET(gtk_separator_new (GTK_ORIENTATION_HORIZONTAL)));
+  gtk_box_append (comparator, GTK_WIDGET (get_image_HISTIDINE()));
+  gtk_box_append (comparator, GTK_WIDGET(gtk_separator_new (GTK_ORIENTATION_HORIZONTAL)));
+  gtk_box_append (comparator, GTK_WIDGET (get_image_PHENYLALANINE()));
+  gtk_box_append (comparator, GTK_WIDGET(gtk_separator_new (GTK_ORIENTATION_HORIZONTAL)));
+  gtk_box_append (comparator, GTK_WIDGET (get_image_DOPAMINE()));
+  gtk_box_append (comparator, GTK_WIDGET(gtk_separator_new (GTK_ORIENTATION_HORIZONTAL)));
+  return comparator;
+}
+
 GtkWidget *get_rules_tree_hpaned_new(){
   GtkPaned *H_tree_vs_comparison = GTK_PANED (gtk_paned_new (GTK_ORIENTATION_HORIZONTAL));
 
   GtkWidget *arbre_des_règles = gtk_frame_new ("Arbre");
   GtkWidget *comparaison_des_règles_sélectionnées = gtk_frame_new ("Sélection");
 
-  gtk_paned_set_start_child (H_tree_vs_comparison, GTK_WIDGET (arbre_des_règles));
-  gtk_paned_set_end_child (H_tree_vs_comparison, GTK_WIDGET (comparaison_des_règles_sélectionnées));
+  gtk_paned_set_start_child (H_tree_vs_comparison, GTK_WIDGET (get_rules_user_tree_new()));
+  gtk_paned_set_end_child (H_tree_vs_comparison, GTK_WIDGET (get_rules_comparator_new()));
   gtk_paned_set_position (H_tree_vs_comparison, 300);
   gtk_paned_set_wide_handle (H_tree_vs_comparison, TRUE);
   gtk_paned_set_shrink_start_child (H_tree_vs_comparison, FALSE);
diff --git a/hot.o b/hot.o
index cb351de..8c00e0f 100644
Binary files a/hot.o and b/hot.o differ
diff --git a/image/2024-05-12   rules explorer   (first sketch).png b/image/2024-05-12   rules explorer   (first sketch).png
new file mode 100644
index 0000000..bcafdf7
Binary files /dev/null and b/image/2024-05-12   rules explorer   (first sketch).png differ
diff --git a/image/arbre utilisateur.png b/image/arbre utilisateur.png
new file mode 100644
index 0000000..8ec8756
Binary files /dev/null and b/image/arbre utilisateur.png differ
diff --git a/myprogram b/myprogram
index c41f53d..64bb7b8 100755
Binary files a/myprogram and b/myprogram differ