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Mixed
Smooth
Tango Icon Library
preferences, system, session
SteelBlue
512x512
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Desktop apps
Farm-fresh
session, Idle, time
DimGray
32x32
UI
Snowish
Gnome, session
128x128
Photography & graphic design
Lumina
session
Black
400x400
Ultimate Gnome
logout, session, Log in
256x256
session, Hibernate
suspend, session
switch, session
Arrows
Minimal perception
session, Halt
DarkSlateGray
64x64
Hibernate, power, session
session, logout, Exit
DarkGray
Reboot, session
Gray
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Computer & hardware
Crystal Project
Locktart, session
MidnightBlue
22x22
session, manager
Gainsboro