/usr/share/xscreensaver/config/cityflow.xml is in xscreensaver-gl 5.34-2ubuntu1.
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 | <?xml version="1.0" encoding="ISO-8859-1"?>
<screensaver name="cityflow" _label="Cityflow" gl="yes">
<command arg="-root"/>
<video href="http://www.youtube.com/watch?v=LJMtu-9T3U0"/>
<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="count" type="slider" arg="-count %"
_label="Boxes" _low-label="Few" _high-label="Many"
low="50" high="4000" default="800"/>
<number id="skew" type="slider" arg="-skew %"
_label="Skew"
_low-label="Low" _high-label="High"
low="0" high="45" default="12"/>
</vgroup>
<vgroup>
<number id="wave-speed" type="slider" arg="-wave-speed %"
_label="Wave speed" _low-label="Slow" _high-label="Fast"
low="5" high="150" default="25"/>
<number id="wave-radius" type="slider" arg="-wave-radius %"
_label="Wave overlap"
_low-label="Small" _high-label="Large"
low="5" high="512" default="256"/>
<number id="waves" type="slider" arg="-waves %"
_label="Wave complexity"
_low-label="Low" _high-label="High"
low="1" high="20" default="6"/>
</vgroup>
</hgroup>
<hgroup>
<boolean id="wire" _label="Wireframe" arg-set="-wireframe"/>
<boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>
<xscreensaver-updater />
</hgroup>
<_description>
Waves move across a sea of boxes. The city swells. The walls are closing in.
Written by Jamie Zawinski; 2014.
</_description>
</screensaver>
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