PNG ICO ICNS MORE
Network & communications
Pixel
16x16 Free Application Icons
tools, job, production
Black
16x16
settings, generator, Applications
reductor, work, generator
PNG MORE
UI
Bijou
settings
10x10
Mixed
IconSweets 2
settings, preferences, flag
40x40
preferences, settings, tools
Lynx Black
xfce4, settings
Gnome icons
settings, Audio, music
48x50
Accessibility, settings, Keyboard
48x48
Applications, settings, default
Files & folders
Still life
theme, settings
32x32
Tango
preferences, tools, system
DRF
Admin, settings, preferences