PNG ICO ICNS MORE
Dark Glass
exclamation, Alert, Error
DarkRed
128x128
Oxygen
stop, Close, cancel
48x48
Nuvola
Error, wrong, warning
Humility
Error, wrong, Alert
Free Web Design
Alarm, alarm clock, exclamation
16x16
Alert, exclamation, Find
exclamation, warning, wrong
mini, Alert, exclamation
Fugue
Error, warning, wrong
Alert, warning, wrong
scissors, wrong, warning
Error, wrong, spell
Error, Alert, cone
Alert, Error, magnet
red, Small, warning
IVISTA
256x256
Phuzion
Alert, wrong, exclamation
Maps & navigation
3D
GPS Map icons
warning, pin, location
UI
Smooth
Function icons
Error, warning, Info
Alert, Attention, exclamation