/usr/share/xscreensaver/config/wander.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 41 42 43 44 45 46 47 48 49 50 51 52 53 | <?xml version="1.0" encoding="ISO-8859-1"?>
<screensaver name="wander" _label="Wander">
<command arg="-root"/>
<hgroup>
<vgroup>
<number id="delay" type="slider" arg="-delay %"
_label="Frame rate" _low-label="Low" _high-label="High"
low="0" high="100000" default="20000"
convert="invert"/>
<number id="density" type="slider" arg="-density %"
_label="Density" _low-label="Low" _high-label="High"
low="1" high="30" default="2"
convert="invert"/>
<number id="reset" type="slider" arg="-reset %"
_label="Duration" _low-label="Short" _high-label="Long"
low="10000" high="3000000" default="2500000"/>
</vgroup>
<vgroup>
<number id="length" type="slider" arg="-length %"
_label="Length" _low-label="Short" _high-label="Long"
low="100" high="100000" default="25000"/>
<number id="advance" type="slider" arg="-advance %"
_label="Color contrast" _low-label="Low" _high-label="High"
low="1" high="100" default="1"/>
<hgroup>
<boolean id="circles" _label="Draw spots" arg-set="-circles"/>
<number id="size" type="spinbutton" arg="-size %"
_label="Size" low="0" high="100" default="1"/>
</hgroup>
<boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>
</vgroup>
</hgroup>
<xscreensaver-updater />
<_description>
A colorful random-walk.
http://en.wikipedia.org/wiki/Random_walk
Written by Rick Campbell; 1999.
</_description>
</screensaver>
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