/usr/share/xscreensaver/config/hydrostat.xml is in xscreensaver-gl 5.36-1ubuntu1.
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 64 65 66 67 68 69 70 71 72 73 74 75 76 | <?xml version="1.0" encoding="ISO-8859-1"?>
<screensaver name="hydrostat" _label="Hydrostat" gl="yes">
<command arg="-root"/>
<video href="https://www.youtube.com/watch?v=nn-nA18hFt0"/>
<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="speed" type="slider" arg="-speed %"
_label="Animation speed" _low-label="Slow" _high-label="Fast"
low="0.01" high="4.0" default="1.0"/>
<number id="count" type="slider" arg="-count %"
_label="Number of squid" _low-label="One" _high-label="Many"
low="1" high="100" default="3" />
<number id="head_radius" type="slider" arg="-head-radius %"
_label="Head size" _low-label="Small" _high-label="Large"
low="10" high="100" default="60" />
<number id="tentacles" type="slider" arg="-tentacles %"
_label="Number of tentacles" _low-label="Few" _high-label="Many"
low="3" high="100" default="35" />
</vgroup>
<vgroup>
<number id="thickness" type="slider" arg="-thickness %"
_label="Thickness" _low-label="Thin" _high-label="Thick"
low="3" high="40" default="18" />
<number id="length" type="slider" arg="-length %"
_label="Length of tentacles" _low-label="Short" _high-label="Long"
low="10" high="150" default="55" />
<number id="gravity" type="slider" arg="-gravity %"
_label="Gravity" _low-label="Weak" _high-label="Strong"
low="0" high="10.0" default="0.5" />
<number id="current" type="slider" arg="-current %"
_label="Current" _low-label="Weak" _high-label="Strong"
low="0.0" high="10.0" default="0.25" />
<number id="friction" type="slider" arg="-friction %"
_label="Viscosity" _low-label="Low" _high-label="High"
low="0.0" high="0.1" default="0.02" />
</vgroup>
</hgroup>
<hgroup>
<boolean id="pulse" _label="Pulse" arg-unset="-no-pulse" />
<boolean id="wire" _label="Wireframe" arg-set="-wireframe"/>
<boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>
<xscreensaver-updater />
</hgroup>
<_description>
Wiggly squid or jellyfish with many tentacles.
A muscular hydrostat is a biological structure used to move its host
about, consisting of muscles with no skeletal support. It performs
its hydraulic movement without fluid in a separate compartment, as in
a hydrostatic skeleton.
https://en.wikipedia.org/wiki/Muscular_hydrostat
Written by Justin Windle and Jamie Zawinski; 2016.
</_description>
</screensaver>
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