PNG ICO ICNS MORE
UI
Pixel
Blueberry
on, music, sound
SteelBlue
32x32
Fugue Icons
receive, mail
16x16
mail, send
receive, send, mail
Minus, water
PNG MORE
Tiny icons
music
10x10
Gnome icons
Modem
Tango
Utilities, monitor, system
Silk
monitor