gnome-control-center/capplets/screensaver/screensavers/starfish.xml

<?xml version="1.0" encoding="ISO-8859-1"?>

<screensaver name="starfish">

    <command arg="-root"/>

    <number label="Speed of animation." low-label="Fast" id="delay"
            type="slider" default="10000" arg="-delay %" low="1"
            high-label="Slow" high="1000000"/>

    <number label="Thickness of color bands (0 = Random)"
            low-label="Slim" id="thickness" type="spinbutton"
            default="0" arg="-thickness %" low="0" high="15"/>

    <number label="Quickness of rotation at each step (0 = Random)"
            low-label="Slow" id="rotation" type="spinbutton"
            default="0" arg="-rotation %" low="0" high="12"/>

    <number label="Duration of current shape." low-label="Seconds"
            id="duration" type="spinbutton" default="30"
            arg="-duration %" low="1" high="60"/>

    <boolean label="Use raw shapes " arg-unset="-no-blob" id="blob"
             arg-set="-blob"/>

    <boolean label="Change to display in monochrome." arg-unset=""
             id="monochrome" test="mono" arg-set="-mono"/>

</screensaver>