<varlistentry id="options.Layer">
      <term>Layer <emphasis remap='I'>layer</emphasis></term>
      <listitem>
<para>Specifies what layer this window should be in.  <emphasis remap='I'>layer</emphasis> may be any
integer (positive, negative, or zero).  Windows are grouped according to
their layer, and may not be moved out of their layer.  Windows in higher
layers will be above windows in lower layers.  By default, windows are
placed in layer 0.  <emphasis remap='I'>StaysOnBack</emphasis> corresponds to <userinput>Layer -1</userinput>, and
<emphasis remap='I'>StaysOnTop</emphasis> corresponds to <emphasis remap='I'>Layer 1</emphasis>.</para>
      </listitem>
</varlistentry>
