diff --git a/app/ui/app_menu.ui b/app/ui/app_menu.ui
index ee08a5e0..18aee0bd 100644
--- a/app/ui/app_menu.ui
+++ b/app/ui/app_menu.ui
@@ -75,13 +75,13 @@
       <section>
         <item>
           <attribute name="label" translatable="yes">Settings</attribute>
-          <attribute name="action">app.on_settings</attribute>
+          <attribute name="action">app.preferences</attribute>
         </item>
       </section>
       <section>
         <item>
           <attribute name="label" translatable="yes">Exit</attribute>
-          <attribute name="action">app.on_close_app</attribute>
+          <attribute name="action">app.quit</attribute>
         </item>
       </section>
     </submenu>
@@ -156,6 +156,11 @@
           <attribute name="label" translatable="yes">Alternate layout</attribute>
           <attribute name="action">app.set_alternate_layout</attribute>
         </item>
+        <item>
+          <attribute name="label" translatable="yes">Alternate window title</attribute>
+          <attribute name="action">app.set_alternate_title</attribute>
+          <attribute name="hidden-when">action-disabled</attribute>
+        </item>
       </section>
     </submenu>
     <submenu id="tools_menu">
@@ -193,7 +198,7 @@
       <section>
         <item>
           <attribute name="label" translatable="yes">About</attribute>
-          <attribute name="action">app.on_about_app</attribute>
+          <attribute name="action">app.about</attribute>
         </item>
       </section>
     </submenu>
@@ -202,19 +207,19 @@
     <section>
       <item>
         <attribute name="label" translatable="yes">About</attribute>
-        <attribute name="action">app.on_about_app</attribute>
+        <attribute name="action">app.about</attribute>
       </item>
     </section>
     <section>
       <item>
         <attribute name="label" translatable="yes">Settings</attribute>
-        <attribute name="action">app.on_settings</attribute>
+        <attribute name="action">app.preferences</attribute>
       </item>
     </section>
     <section>
       <item>
         <attribute name="label" translatable="yes">Exit</attribute>
-        <attribute name="action">app.on_close_app</attribute>
+        <attribute name="action">app.quit</attribute>
       </item>
     </section>
   </menu>
@@ -372,6 +377,11 @@
           <attribute name="label" translatable="yes">Alternate layout</attribute>
           <attribute name="action">app.set_alternate_layout</attribute>
         </item>
+        <item>
+          <attribute name="label" translatable="yes">Alternate window title</attribute>
+          <attribute name="action">app.set_alternate_title</attribute>
+          <attribute name="hidden-when">action-disabled</attribute>
+        </item>
       </section>
     </submenu>
     <submenu>
diff --git a/app/ui/main.glade b/app/ui/main.glade
index 5a8bfc43..3baae07c 100644
--- a/app/ui/main.glade
+++ b/app/ui/main.glade
@@ -898,7 +898,7 @@ Author: Dmitriy Yefremov
                 <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
                 <property name="margin_bottom">2</property>
-                <property name="action_name">app.on_settings</property>
+                <property name="action_name">app.preferences</property>
                 <property name="text" translatable="yes">Settings</property>
               </object>
               <packing>
@@ -949,7 +949,7 @@ Author: Dmitriy Yefremov
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
-                <property name="action_name">app.on_about_app</property>
+                <property name="action_name">app.about</property>
                 <property name="text" translatable="yes">About</property>
               </object>
               <packing>
@@ -963,8 +963,8 @@ Author: Dmitriy Yefremov
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
+                <property name="action_name">app.quit</property>
                 <property name="text" translatable="yes">Exit</property>
-                <signal name="clicked" handler="on_close_app" swapped="no"/>
               </object>
               <packing>
                 <property name="expand">False</property>
diff --git a/app/ui/main.py b/app/ui/main.py
index 8eacc9c1..417e7fbb 100644
--- a/app/ui/main.py
+++ b/app/ui/main.py
@@ -649,7 +649,8 @@ class Application(Gtk.Application):
         builder = get_builder(UI_RESOURCES_PATH + "app_menu.ui", tag="attribute")
         if not USE_HEADER_BAR:
             if IS_DARWIN:
-                self.set_app_menu(builder.get_object("mac_app_menu"))
+                if not self.get_app_menu():
+                    self.set_app_menu(builder.get_object("mac_app_menu"))
                 self.set_menubar(builder.get_object("mac_menu_bar"))
             else:
                 self.set_menubar(builder.get_object("menu_bar"))
@@ -704,14 +705,17 @@ class Application(Gtk.Application):
                     self.set_action(action_name, ac)
 
     def init_actions(self):
+        # Main actions.
+        self.set_action("preferences", self.on_settings)
+        self.set_action("about", self.on_about_app)
+        self.set_action("quit", self.on_close_app)
+        # Import.
         self.set_action("on_import_bouquet", self.on_import_bouquet)
         self.set_action("on_import_bouquets", self.on_import_bouquets)
         self.set_action("on_new_configuration", self.on_new_configuration)
         self.set_action("on_import_from_web", self.on_import_from_web)
-        self.set_action("on_settings", self.on_settings)
+        # Tools.
         self.set_action("on_backup_tool_show", self.on_backup_tool_show)
-        self.set_action("on_about_app", self.on_about_app)
-        self.set_action("on_close_app", self.on_close_app)
         self.set_state_action("on_telnet_show", self.on_telnet_show, False)
         self.set_state_action("on_logs_show", self.on_logs_show, False)
         # Filter.
@@ -768,6 +772,9 @@ class Application(Gtk.Application):
         # Alternate layout.
         sa = self.set_state_action("set_alternate_layout", self.set_use_alt_layout, self._settings.alternate_layout)
         sa.connect("change-state", self.on_layout_change)
+        # Header bar for macOS.
+        sa = self.set_state_action("set_alternate_title", self.set_use_alt_title, self._settings.use_header_bar)
+        sa.set_enabled(IS_DARWIN)
         # Menu bar and playback.
         self.set_action("on_playback_close", self._player_box.on_close)
         if not USE_HEADER_BAR:
@@ -804,7 +811,7 @@ class Application(Gtk.Application):
         self.set_accels_for_action("app.open_data", ["<primary>o"])
         self.set_accels_for_action("app.on_hide", ["<primary>h"])
         self.set_accels_for_action("app.on_locked", ["<primary>l"])
-        self.set_accels_for_action("app.on_close_app", ["<primary>q"])
+        self.set_accels_for_action("app.quit", ["<primary>q"])
         self.set_accels_for_action("app.on_edit", ["<primary>e"])
         self.set_accels_for_action("app.on_telnet_show", ["<primary>t"])
         self.set_accels_for_action("app.on_logs_show", ["<shift><primary>l"])
@@ -1106,6 +1113,17 @@ class Application(Gtk.Application):
         action.set_state(value)
         self._settings.alternate_layout = bool(value)
 
+    def set_use_alt_title(self, action, value):
+        action.set_state(value)
+        value = bool(value)
+        self._settings.use_header_bar = bool(value)
+
+        msg = get_message("Restart the program to apply all changes.")
+        if value:
+            warn = "It can cause some problems."
+            msg = f"{get_message('EXPERIMENTAL!')} {warn} {msg}"
+        self.show_info_message(msg, Gtk.MessageType.WARNING)
+
     @run_idle
     def on_layout_change(self, action, value):
         is_alt = bool(value)