This file is indexed.

/usr/share/xscreensaver/config/pulsar.xml is in xscreensaver-gl 5.36-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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<?xml version="1.0" encoding="ISO-8859-1"?>

<screensaver name="pulsar" _label="Pulsar" gl="yes">

  <command arg="-root"/>

  <video href="https://www.youtube.com/watch?v=pR0lpvOAbUo"/>

  <number id="delay" type="slider" arg="-delay %"
          _label="Frame rate" _low-label="Low" _high-label="High"
          low="0" high="100000" default="10000"
          convert="invert"/>

   <number id="quads" type="spinbutton" arg="-quads %"
            _label="Quad count" low="1" high="50" default="5"/>

  <hgroup>
   <vgroup>
     <boolean id="light"     _label="Enable lighting" arg-set="-light"/>
     <boolean id="fog"       _label="Enable fog" arg-set="-fog"/>
     <boolean id="texture"   _label="Enable texturing" arg-set="-texture"/>
     <boolean id="mipmap" _label="Enable texture mipmaps" arg-set="-mipmap"/>
   </vgroup>
   <vgroup>
     <boolean id="no-blend"  _label="Enable blending" arg-unset="-no-blend"/>
     <boolean id="antialias" _label="Anti-alias lines" arg-set="-antialias"/>
     <boolean id="texture_quality" _label="Enable texture filtering"
                              arg-set="-texture_quality"/>
     <boolean id="do_depth" _label="Enable depth buffer" arg-set="-do_depth"/>
   </vgroup>
 </hgroup>

  <boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>

  <xscreensaver-updater />

  <_description>
Intersecting planes, with alpha blending, fog, textures, and mipmaps.

Written by David Konerding; 1999.
  </_description>
</screensaver>