Icons under the CC0, https://creativecommons.org/publicdomain/zero/1.0/

List of icons and contributors:

mute.bw.png					- Kozec, (CC 0)
next.bw.png					- Kozec, (CC 0)
pause.bw.png				- Kozec, (CC 0)
play.bw.png					- Kozec, (CC 0)
prev.bw.png					- Kozec, (CC 0)
stop.bw.png					- Kozec, (CC 0)
volume-down.bw.png			- Kozec, (CC 0)
volume-up.bw.png			- Kozec, (CC 0)
