PNG ICO ICNS MORE
UI
3D
Gnome Web Icons
Apply, Dialog
DarkOliveGreen
32x32
Information, Gnome, Dialog
SteelBlue
Dialog, Gnome, question
Gnome, Dialog, Error
Firebrick
Gnome, Dialog, password
Gray
Dialog, Gnome, warning
Chocolate
Dialog, 48, tick
48x48
48, Information, Gnome
Dialog, question, Gnome
Gnome, 48, Dialog
warning, Dialog, Gnome
PNG ICO MORE
yes, ok, tick
Black
64x64
64, Gnome, Dialog
bulb, Idea, light
password, Gnome, 64
Dialog, Faq, help
Attention, warning, Dialog
DarkOrange
Mixed
Micro
Dialog, Information
128x128
Computer & hardware
Discovery
Error, Dialog
Tomato
Dialog, warning
PNG MORE
Desktop apps
Free Applications Icons
red, tick, yes
24x24
Human o2
Dialog, tux, question