./x11-apps/whyteboard/files/whyteboard.png Binary files like pngs should be distributed via distfiles. CVS (and in the future, git) don't handle binary files well.
Six month ping...
Sorry for the long delay, I have fixed it. + 26 Jan 2012; Fabio Erculiani <lxnay@gentoo.org> whyteboard-0.41.1.ebuild, + -files/whyteboard.png: + move binary files remotely, closes bug #370923 +