/usr/share/xscreensaver/config/voronoi.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.
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 54 55 56 57 58 59 60 61 62 63 | <?xml version="1.0" encoding="ISO-8859-1"?>
<screensaver name="voronoi" _label="Voronoi" gl="yes">
<command arg="-root"/>
<video href="https://www.youtube.com/watch?v=hD_8cBvknUM"/>
<hgroup>
<vgroup>
<number id="delay" type="slider" arg="-delay %"
_label="Frame rate" _low-label="Slow" _high-label="Fast"
low="0" high="100000" default="20000"
convert="invert"/>
<number id="points" type="slider" arg="-points %"
_label="Points" _low-label="Few" _high-label="Many"
low="1" high="100" default="25"/>
<number id="pointSize" type="slider" arg="-point-size %"
_label="Point size" _low-label="0" _high-label="50 pixels"
low="0" high="50" default="9"/>
<boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>
</vgroup>
<vgroup>
<number id="pointSpeed" type="slider" arg="-point-speed %"
_label="Wander speed" _low-label="Slow" _high-label="Fast"
low="0.0" high="10.0" default="1.0"/>
<number id="pointDelay" type="slider" arg="-point-delay %"
_label="Insertion speed" _low-label="Slow" _high-label="Fast"
low="0.0" high="3.0" default="0.05"
convert="invert"/>
<number id="zoomSpeed" type="slider" arg="-zoom-speed %"
_label="Zoom speed" _low-label="Slow" _high-label="Fast"
low="0.1" high="10.0" default="1.0"/>
<number id="zoomDelay" type="slider" arg="-zoom-delay %"
_label="Zoom frequency" _low-label="0" _high-label="60 seconds"
low="0" high="60" default="15"/>
</vgroup>
</hgroup>
<xscreensaver-updater />
<_description>
A Voronoi tessellation. Periodically zooms in and adds new points.
The existing points also wander around.
There are a set of control points on the plane, each at the center of
a colored cell. Every pixel within that cell is closer to that cell's
control point than to any other control point. That is what
determines the cell's shapes.
https://en.wikipedia.org/wiki/Voronoi_diagram
https://en.wikipedia.org/wiki/Tessellation
Written by Jamie Zawinski; 2007.
</_description>
</screensaver>
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