This file is indexed.

/usr/share/xscreensaver/config/apollonian.xml is in xscreensaver-data-extra 5.30-1+deb8u2.

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

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
<?xml version="1.0" encoding="ISO-8859-1"?>

<screensaver name="apollonian" _label="Apollonian">

  <command arg="-root"/>

  <boolean id="label" _label="Draw labels" arg-unset="-no-label"/>

  <boolean id="altgeom" _label="Include alternate geometries"
           arg-unset="-no-altgeom"/>

<!-- don't know what -count does -->

  <number id="cycles" type="slider" arg="-cycles %"
           _label="Depth" _low-label="Shallow" _high-label="Deep"
          low="1" high="20" default="20"/>

  <number id="ncolors" type="slider" arg="-ncolors %"
            _label="Number of colors" _low-label="Two" _high-label="Many"
            low="2" high="255" default="64"/>

  <number id="delay" type="slider" arg="-delay %"
          _label="Speed" _low-label="Slow" _high-label="Fast"
          low="0" high="1000000" default="1000000"
          convert="invert"/>

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

  <xscreensaver-updater />

  <_description>
A fractal packing of circles with smaller circles, demonstrating
Descartes's theorem.

http://en.wikipedia.org/wiki/Apollonian_gasket
http://en.wikipedia.org/wiki/Descartes%27_theorem

Written by Allan R. Wilks and David Bagley; 2002.
  </_description>
</screensaver>