This file is indexed.

/usr/share/xscreensaver/config/apple2.xml is in xscreensaver-data-extra 5.15-3ubuntu1.

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
41
42
43
<?xml version="1.0" encoding="ISO-8859-1"?>

<screensaver name="apple2" _label="Apple2">

 <command arg="-root"/>

 <select id="mode">
  <option id="random"    _label="Choose display mode randomly"/>
  <option id="text"      _label="Display scrolling text" arg-set="-mode text"/>
  <option id="slideshow" _label="Display images"         arg-set="-mode slideshow"/>
  <option id="basic"     _label="Run basic programs"     arg-set="-mode basic"/>
 </select>

 <hgroup>
  <vgroup>
   <xscreensaver-text />
  </vgroup>
  <vgroup>
   <xscreensaver-image />
   <boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>
  </vgroup>
 </hgroup>

 <_description>
Simulates an original Apple ][ Plus computer in all its 1979 glory.  It
also reproduces the appearance of display on a color television set of
the period.

In "Basic Programming Mode", a simulated user types in a BASIC program
and runs it.  In "Text Mode", it displays the output of a program, or
the contents of a file or URL.  In "Slideshow Mode", it chooses random
images and displays them within the limitations of the Apple ][
display hardware.  (Six available colors in hi-res mode!)

This program is also a fully-functional VT100 emulator!  Run it as an
application instead of as a screen saver and you can use it as a
terminal.

http://en.wikipedia.org/wiki/Apple_II_series

Written by Trevor Blackwell; 2003.
  </_description>
</screensaver>