menu.xml

<?xml version="1.0" encoding="utf-8"?>
<openbox_menu xmlns="http://openbox.org/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://openbox.org/">
	<menu label="New Menu" id="root-menu" >
		<item label="Hello world">
			<action name="Execute">
				<execute>subl3</execute>
			</action>
		</item>
	</menu>
</openbox_menu>