PNG MORE
Spirit20
Info, system, Alt
SteelBlue
20x20
question, system, Alt
PNG ICO ICNS MORE
Oxygen-Refit
preference, Setting, system
128x128
Mac OS X Style Folders
File, system, document
256x256
Agua Extras Vol. 1
Badge, system
Tango
preference, Setting, Configure
32x32
monitor, system, utility
Reflexion
Folder, system
PNG ICO MORE
GNOME Desktop
Gnome, Emblem, system
64x64
Oxygen
internet, preference, network
Files & folders
3D
Folders
system, Apple, osx
512x512
PNG ICO ICNS SVG MORE
Computer & hardware
Glyph
Devices
system, Computer, pc
Signs & symbols
Smooth
Social Flat Buttons
Blogging, word, press
Mixed
Tango Icon Library
preferences, system, session
monitor, system, Utilities
Business & finance
24x24 Free Application Icons
Application, tool, Applications
24x24
system, 02, question
UI
Gnome Web Icons
system, Gnome, Emblem
Gnome, Emblem, 48
48x48
Emblem, Gnome, system
Some icons
Computer, system, monitor
80x80
Snowish
Gnome, system
Pixel
system, session, preferences
Utilities, monitor, system