PNG ICO ICNS MORE
Desktop apps
3D
Open Phone
calculator
DarkOliveGreen
256x256
UI
Gnome Web Icons
Apply, Dialog
32x32
Dialog, 48, tick
48x48
Photography & graphic design
Dark Glass
Decrypted
128x128
Lock
Kaffeine
Animal, snake, cobra
Lockoverlay
overlay, Lock
Lock, File