gtk3-demo-application: fix sections

<section> doesn't need to be given in a menubar but it does need to be
given for submenus, so add those ones back.

diff --git a/demos/gtk-demo/menus.ui b/demos/gtk-demo/menus.ui
index da30b4f92cf20d194b1c10c2347b99b2d5388a2e..410596b036ba229188d2d022b9eec6982e99e1dc 100644 (file)
--- a/demos/gtk-demo/menus.ui
+++ b/demos/gtk-demo/menus.ui
@@ -13,19 +13,25 @@
   </menu>
   <menu id="menubar">
     <submenu label="_Preferences">
-      <item label="_Prefer Dark Theme" action="app.dark"/>
-      <item label="_Hide Titlebar when maximized" action="win.titlebar"/>
-      <submenu label="_Color">
-        <item label="_Red" action="win.color" target="red" accel="&lt;Primary&gt;r"/>
-        <item label="_Green" action="win.color" target="green" accel="&lt;Primary&gt;g"/>
-        <item label="_Blue" action="win.color" target="blue" accel="&lt;Primary&gt;b"/>
-      </submenu>
-      <submenu label="_Shape">
-        <item label="_Square" action="win.shape" target="square" accel="&lt;Primary&gt;s"/>
-        <item label="_Rectangle" action="win.shape" target="rectangle" accel="&lt;Primary&gt;r"/>
-        <item label="_Oval" action="win.shape" target="oval" accel="&lt;Primary&gt;o"/>
-      </submenu>
-      <item label="_Bold" action="win.bold" accel="&lt;Primary&gt;b"/>
+      <section>
+        <item label="_Prefer Dark Theme" action="app.dark"/>
+        <item label="_Hide Titlebar when maximized" action="win.titlebar"/>
+        <submenu label="_Color">
+          <section>
+            <item label="_Red" action="win.color" target="red" accel="&lt;Primary&gt;r"/>
+            <item label="_Green" action="win.color" target="green" accel="&lt;Primary&gt;g"/>
+            <item label="_Blue" action="win.color" target="blue" accel="&lt;Primary&gt;b"/>
+          </section>
+        </submenu>
+        <submenu label="_Shape">
+          <section>
+            <item label="_Square" action="win.shape" target="square" accel="&lt;Primary&gt;s"/>
+            <item label="_Rectangle" action="win.shape" target="rectangle" accel="&lt;Primary&gt;r"/>
+            <item label="_Oval" action="win.shape" target="oval" accel="&lt;Primary&gt;o"/>
+          </section>
+        </submenu>
+        <item label="_Bold" action="win.bold" accel="&lt;Primary&gt;b"/>
+      </section>
     </submenu>
     <submenu label="_Help">
       <item label="_About" action="win.about" accel="&lt;Primary&gt;a"/>