https://bugzilla.gnome.org/show_bug.cgi?id=729594
<object class="GtkSwitch" id="switch1">
<property name="visible">True</property>
<property name="sensitive">True</property>
+ <property name="halign">center</property>
</object>
<packing>
<property name="expand">False</property>
<object class="GtkSwitch" id="switch2">
<property name="visible">True</property>
<property name="sensitive">False</property>
+ <property name="halign">center</property>
</object>
<packing>
<property name="expand">False</property>