PNG ICO ICNS MORE
Gloss: Basic
Alert, date, exclamation
Khaki
16x16
Matte: Basic
Note, wrong, warning
32x32
Splashy
wrong, Error, Alert
Farm-Fresh Web
Folder, Alert, exclamation
bell, exclamation, Error
Silk
Error, warning, wrong
warning, exclamation, wrong
Note, Error, warning
Silk Companion 1
security, protect, exclamation
Sticky
Error, wrong, warning
128x128
Fugue
Alert, warning, exclamation
warning, exclamation, Error
Air
Error, wrong, exclamation
Network & communications
Cartoon
Sticky pack
exclamation
UI
Pixel
Fugue Icons
exclamation, frame, octagon
exclamation, sticky, Note