PNG ICO ICNS MORE
Desktop apps
Smooth
Windows 7 toolbar full
secure, search, config
Black
256x256
search, secure
search, secure, Clock
search, secure, Unlock
Farm-fresh
secure, Lock
DarkGoldenrod
32x32
Mac OS X style
Lock, secure, private
512x512
One bit
Lock, Blue, secure
DarkGray
48x48
KDE Crystal Diamond
File, locked, secure
Snow
128x128