PNG ICO ICNS MORE
Desktop apps
Smooth
One bit
Alert, Information
DarkGoldenrod
48x48
Computer & hardware
Crystal Project
Alert
DarkOrange
256x256
Alert, File
WhiteSmoke
Alert, update, download
Black
Network & communications
Oxygen
exclamation, Alert, Information
SteelBlue
128x128
Folder, important, auto
CornflowerBlue
Alert, Calendar
Dialog, warning, Alert
Orange
PNG MORE
Signs & symbols
34aL volume 3.2 SE
Message, exclamation, warning
Tomato
24x24
UI
Function icons
Alert, warning, user
Teal
triangle, sign, Caution
Gold
Mixed
Carpelinx
Book, Alert, important
DarkSlateGray