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Mixed
Smooth
Angular UI
Halt, Critical, Error
Red
512x512
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Tango Icon Library
Error, Dialog
Tomato
Error, network
DimGray
printer, Error
Black
Desktop apps
Farm-fresh
compile, Error
32x32
http, Server, Status
Computer & hardware
Crystal Project
next, Error, stock
OrangeRed
16x16
Error, previous, stock
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Error, stock, next
24x24
UI
All Google icons
Status, Error
DarkOrange
Music & multimedia
Gakuseisean
Error
IndianRed
256x256
Error, screen
RoyalBlue
Error, square, shape
LightBlue
Spellcheck, Error
table, Error
LightCyan
telephone, Error
DarkGray
Transmit, Error
Peru
Webcam, Error
iVista 2
Maroon
Signs & symbols
32px Rounded icons
SaddleBrown
Files & folders
Spirit20
system, Error
20x20
system, 02, Error
Firebrick