PNG ICO ICNS MORE
Desktop apps
Flat
Circle Icons
Amazon
DarkGoldenrod
512x512
PNG MORE
Metro UI Dock
Mirror, adobe, Fireworks
640x640
adobe, Fireworks
Smooth
Farm-fresh
gold, card, Amex
32x32
Gloss: Adobe Products
Fireworks, adobe
One bit
exclamation, Alert, notice
48x48
Alert, Information
Pixel
Diagona Icons
Attention, Alert, exclamation
16x16