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UI
Pixel
WooFunction Icon set
Text, warning, Page
WhiteSmoke
32x32
warning, search
DarkGray
user, Man, consultant
DarkSlateGray
user, warning
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Tiny icons
warning
Orange
10x10
Fugue Icons
Eye, view alert, exclamation
DarkGoldenrod
16x16
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Smooth
Quartz
Email, warning
Gainsboro
64x64
compile, warning
Black
Gnome icons
warning, gtk, Dialog
SandyBrown
Tango
warning, Dialog
3D
Glaze
warning, messagebox, Alert
Function icons
noflash, Camera, warning
48x48
warning, Camera
Error, warning, Info
DarkRed
LightSteelBlue
Database, warning
warning, Folder
DarkKhaki
warning, image
Alert, warning, user
Teal
warning, Users, two
exclamation, warn, warning
triangle, sign, Caution
Gold
cross, Circle, Error
Nuvola
warning, important, Attention
128x128