The program icon is from http://commons.wikimedia.org/wiki/File:Pick_any_two_venn.svg
It is licensed under the CC 0 license.

The star graphics are from :
http://commons.wikimedia.org/wiki/File:0hvof5.svg
http://commons.wikimedia.org/wiki/File:1of5.svg
http://commons.wikimedia.org/wiki/File:1hvof5.svg
http://commons.wikimedia.org/wiki/File:2of5.svg
http://commons.wikimedia.org/wiki/File:2hvof5.svg
http://commons.wikimedia.org/wiki/File:3of5.svg
http://commons.wikimedia.org/wiki/File:3hvof5.svg
http://commons.wikimedia.org/wiki/File:4of5.svg
http://commons.wikimedia.org/wiki/File:4hvof5.svg
http://commons.wikimedia.org/wiki/File:5of5.svg
but modified to have a grey inner shading instead of a yellow colour.
Licensed under Creative Commons Attribution Share-Alike 2.5.
