<?xml version="1.0" encoding="UTF-8"?> <interface> <!-- interface-requires gtk+ 3.0 --> <object class="GtkWindow" id="window1"> <property name="can_focus">False</property> <property name="type">popup</property> <child> <object class="GtkHeaderBar" id="headerbar1"> <property name="visible">True</property> <property name="title">Title</property> <property name="subtitle">Subtitle</property> <child> <object class="GtkButton" id="button1"> <property name="label" translatable="yes">Yes</property> <property name="visible">True</property> </object> <packing> <property name="pack-type">start</property> </packing> </child> <child> <object class="GtkButton" id="page2"> <property name="label" translatable="yes">No</property> <property name="visible">True</property> </object> <packing> <property name="pack-type">end</property> </packing> </child> </object> </child> </object> </interface>