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Mixed
Smooth
Tango Icon Library
monitor, system, Utilities
SteelBlue
512x512
system, Installer
Black
system, Users
system, Applications
preferences, system
Emblem, system
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Flat
20 Flat Icons
tools, preferences, settings
Gainsboro
128x128
48px web iconset
system
DarkGray
48x48
system, Monitoring
DarkSlateGray
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Some icons
Computer, system, monitor
80x80
Humility
LightSlateGray
24x24
3D
Micro
radar, Nearby, system
system, preferences
Carpelinx
system, package
Gray
64x64