PNG ICO ICNS MORE
UI
3D
Gnome Web Icons
severe, Alert, Gnome
DimGray
32x32
48, weather, Alert
48x48
PNG ICO MORE
64, Gnome, Alert
Black
64x64
Glaze
warning, messagebox, Alert
Nuvola
Alert, Attention, exclamation
DarkRed
Crystal Clear
Arrow, update, download
SandyBrown
Calendar, Alert
SteelBlue
22x22
Message, critial, Alert