The authorship or origin of the included images:

default.png	taken from feedicons.com (Matt Brett http://feedicons.com)
folder_empty.png derived from default.png (Lars Windolf <lars.windolf@gmx.de>)

empty.png,	modified GNOME stock icons (Lars Windolf <lars.windolf@gmx.de>)
vfolder.png	

directory.png,	copy of GNOME stock icons
attachment.png,
unread.png

liferea.png	(news-reader-48.png) Jakub Steiner <jimmac@ximian.com>
fl_opml.png	OPML icon (Chris Pirillo <chris@lockergnome.com>)

newsbin.png	created for Liferea, Lars Windolf <lars.windolf@gmx.de>

16x16/liferea.png, 22x22/liferea.png, 24x24/liferea.png, 32x32/liferea.png, 
48x48/liferea.png and scalable/liferea.svg: Jeff Fortin <nekohayo@gmail.com>,
creative commons share-alike license (http://creativecommons.org/licenses/by-sa/3.0/)
