/usr/share/xscreensaver/config/cubicgrid.xml is in xscreensaver-gl-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 | <?xml version="1.0" encoding="ISO-8859-1"?>
<screensaver name="cubicgrid" _label="CubicGrid">
<command arg="-root"/>
<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="speed" type="slider" arg="-speed %"
_label="Speed" _low-label="Slow" _high-label="Fast"
low="0.2" high="10.0" default="1.0"/>
<number id="zoom" type="slider" arg="-zoom %"
_label="Dot spacing" _low-label="Close" _high-label="Far"
low="15" high="100" default="20"/>
<boolean id="bigdots" _label="Big dots" arg-unset="-no-bigdots"/>
<boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>
<_description>
Draws the view of an observer located inside a rotating 3D lattice of colored
points.
Written by Vasek Potocek; 2007.
</_description>
</screensaver>
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