labwc/docs/menu.xml

<openbox_menu>
<!-- Note: for localization support of menu items "client-menu" has to be removed here -->
<menu id="client-menu">
  <item label="Minimize">
    <action name="Iconify" />
  </item>
  <item label="Maximize">
    <action name="ToggleMaximize" />
  </item>
  <item label="Fullscreen">
    <action name="ToggleFullscreen" />
  </item>
  <item label="Roll Up/Down">
    <action name="ToggleShade" />
  </item>
  <item label="Decorations">
    <action name="ToggleDecorations" />
  </item>
  <item label="Always on Top">
    <action name="ToggleAlwaysOnTop" />
  </item>
  <!--
    Any menu with the id "workspaces" will be hidden
    if there is only a single workspace available.
  -->
  <menu id="client-send-to-menu"/>
  <!--
    openbox default workspace selector
    to use replace above workspace menu with the example below
    the label is required, but you can change the text.

    <menu id="client-send-to-menu" label="Send to..." />
  -->
  <item label="Close">
    <action name="Close" />
  </item>
</menu>

<menu id="root-menu">
  <!-- Make client-list-combined-menu a submenu of root-menu
       You must supply a label or it will not appear in root-menu -->
  <!--
  <menu id="client-list-combined-menu" label="Running..." />
  -->
  <item label="Terminal">
    <action name="Execute" command="lab-sensible-terminal" />
  </item>
  <separator />
  <item label="Reconfigure">
    <action name="Reconfigure" />
  </item>
  <item label="Exit">
    <action name="Exit" />
  </item>
  <!--
  # A prompt can be used as follows:
  <item label="Exit">
    <action name="If">
      <prompt message="Do you really want to exit the compositor?"/>
      <then>
        <action name="Exit"/>
      </then>
    </action>
  </item>
  -->
</menu>

<menu id="some-custom-menu">
  <!--
    Creates menu title.
    To create an empty header with no text,
    set label=" ", not label=""
  -->
  <separator label="custom menu" />
  <item label="Reconfigure">
    <action name="Reconfigure" />
  </item>
  <item label="Exit">
    <action name="Exit" />
  </item>
</menu>

</openbox_menu>