/usr/share/xscreensaver/config/xanalogtv.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 | <?xml version="1.0" encoding="ISO-8859-1"?>
<screensaver name="xanalogtv" _label="XAnalogTV">
<command arg="-root"/>
<xscreensaver-image />
<boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>
<hgroup>
<vgroup>
<number id="tvcolor" type="slider" arg="-tv-color %"
_label="Color Knob" _low-label="Low" _high-label="High"
low="0" high="1000" default="70"/>
<number id="tvtint" type="slider" arg="-tv-tint %"
_label="Tint Knob" _low-label="Low" _high-label="High"
low="0" high="100" default="5"/>
</vgroup>
<vgroup>
<number id="tvbrightness" type="slider" arg="-tv-brightness %"
_label="Brightness Knob" _low-label="Low" _high-label="High"
low="0" high="200" default="150"/>
<number id="tvcontrast" type="slider" arg="-tv-contrast %"
_label="Contrast Knob" _low-label="Low" _high-label="High"
low="0" high="1500" default="1000"/>
</vgroup>
</hgroup>
<xscreensaver-updater />
<_description>
An old TV set, including artifacts like snow, bloom, distortion,
ghosting, and hash noise. It also simulates the TV warming up. It
will cycle through 12 channels, some with images you give it, and some
with color bars or nothing but static.
Written by Trevor Blackwell; 2003.
</_description>
</screensaver>
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