diff --git a/include/ui.h b/include/ui.h
index df974d7..28fe558 100644
--- a/include/ui.h
+++ b/include/ui.h
@@ -56,3 +56,61 @@ GemGraphClientApplication *gem_graph_client_application_new(const char *applicat
                                                              GApplicationFlags flags);
 
 G_END_DECLS
+
+
+//
+// Actions
+//
+void on_about_action(GSimpleAction *action,
+                     GVariant *parameter,
+                     gpointer user_data);
+
+void on_quit_action(GSimpleAction *action,
+                    GVariant *parameter,
+                    gpointer user_data);
+
+void on_preferences_action(GSimpleAction *action,
+                    GVariant *parameter,
+                    gpointer user_data);
+
+void on_togglesidebar_action(GSimpleAction *action,
+                    GVariant *parameter,
+                    gpointer user_data);
+
+void on_editmode_action(GSimpleAction *action,
+                    GVariant *parameter,
+                    gpointer user_data);
+
+void on_runmode_action(GSimpleAction *action,
+                    GVariant *parameter,
+                    gpointer user_data);
+
+void on_presentmode_action(GSimpleAction *action,
+                    GVariant *parameter,
+                    gpointer user_data);
+
+void on_openfile_action(GSimpleAction *action,
+                    GVariant *parameter,
+                    gpointer user_data);
+
+void on_closefile_action(GSimpleAction *action,
+                    GVariant *parameter,
+                    gpointer user_data);
+
+void on_savefile_action(GSimpleAction *action,
+                    GVariant *parameter,
+                    gpointer user_data);
+
+
+static const GActionEntry app_actions[] = {
+    { "quit", on_quit_action },
+    { "about", on_about_action },
+    { "preferences", on_preferences_action },
+    { "togglesidebar", on_togglesidebar_action },
+    { "editmode", on_editmode_action },
+    { "runmode", on_runmode_action },
+    { "presentmode", on_presentmode_action },
+    { "openfile", on_openfile_action },
+    { "closefile", on_closefile_action },
+    { "savefile", on_savefile_action },
+};
diff --git a/src/ui/application.c b/src/ui/application.c
index ef17f26..47d3f78 100644
--- a/src/ui/application.c
+++ b/src/ui/application.c
@@ -69,54 +69,19 @@ static void gem_graph_client_application_class_init(
   app_class->activate = gem_graph_client_application_activate;
 }
 
-static void
-gem_graph_client_application_about_action (GSimpleAction *action,
-                                           GVariant *parameter,
-                                           gpointer user_data)
-{
-  static const char *authors[] = {  "Adrien Bourmault <neox@a-lec.org>",
-                                    "Jean Sirmai <jean@a-lec.org>",
-                                    NULL};
-  GemGraphClientApplication *self = user_data;
-  GtkWindow *window = NULL;
-
-  g_assert (GEM_GRAPH_CLIENT_IS_APPLICATION(self));
-
-  window = gtk_application_get_active_window(GTK_APPLICATION (self));
-
-  gtk_show_about_dialog(window,
-                         "program-name", "Gem-graph",
-                         "logo-icon-name", "application-x-executable",
-                         "authors", authors,
-                         "version", "0.1.0",
-                         "copyright", "Copyright © 2022 Libre en Communs",
-                         NULL);
-}
-
-static void gem_graph_client_application_quit_action (GSimpleAction *action,
-                                                      GVariant *parameter,
-                                                      gpointer user_data)
-{
-  GemGraphClientApplication *self = user_data;
-
-  g_assert(GEM_GRAPH_CLIENT_IS_APPLICATION(self));
-
-  g_application_quit(G_APPLICATION(self));
-}
-
-static const GActionEntry app_actions[] = {
-  { "quit", gem_graph_client_application_quit_action },
-  { "about", gem_graph_client_application_about_action },
-};
 
 static void gem_graph_client_application_init(GemGraphClientApplication *self)
 {
-  g_action_map_add_action_entries(G_ACTION_MAP(self),
+    g_action_map_add_action_entries(G_ACTION_MAP(self),
                                    app_actions,
                                    G_N_ELEMENTS(app_actions),
                                    self);
-  gtk_application_set_accels_for_action(GTK_APPLICATION (self),
-                                         "app.quit",
-                                         (const char *[]) { "<primary>q", NULL });
+
+    gtk_application_set_accels_for_action(GTK_APPLICATION (self),
+                                    "app.quit",
+                                    (const char *[]) { "<primary>q", NULL });
+
 }
 
+
+// XXX changer tous les noms
diff --git a/src/ui/gemgraph.ui b/src/ui/gemgraph.ui
index 2aeba62..edfe3b9 100644
--- a/src/ui/gemgraph.ui
+++ b/src/ui/gemgraph.ui
@@ -9,6 +9,9 @@
     <property name="default-width">1080</property>
     <property name="icon-name">application-x-executable</property>
     <property name="title">GemGraph 0.1.0</property>
+    <style>
+      <class name="devel"/>
+    </style>
     <child type="titlebar">
       <object class="GtkHeaderBar" id="main_titlebar">
         <child type="end">
diff --git a/src/ui/window.c b/src/ui/window.c
index aeca3b7..31082bc 100644
--- a/src/ui/window.c
+++ b/src/ui/window.c
@@ -247,5 +247,5 @@ static void gem_graph_client_window_class_init(GemGraphClientWindowClass *klass)
 
 static void gem_graph_client_window_init(GemGraphClientWindow *self)
 {
-    gtk_widget_init_template(GTK_WIDGET (self));
+    gtk_widget_init_template(GTK_WIDGET(self));
 }