Copyright of the icons:
-----------------------


From the "Nuvola" package by David Vignoni:
http://www.icon-king.com/projects/nuvola/

application-exit.png
document-close.png
document-new.png
document-open.png
document-open-example.png (modified)
document-print.png
document-save-as.png
document-save.png
edit-copy.png
edit-cut.png
edit-delete.png
edit-paste.png
edit-redo.png
edit-undo.png
down.png
pencil.png
up.png
edit-scale.png (modified from edit-copy.png)


From the "Crystal" project:
http://www.everaldo.com/crystal/

delete.png
preferences.png
zoom-in.png
zoom-out.png
help-license.png
help-log.png
help-about.png
help-bug.png
help-tours.png
star_silver.png
star_gold.png (modified from star_silver.png)