PNG ICO ICNS MORE
Desktop apps
Smooth
iOS 7-inspired Mac icon set
messages, Chat
SkyBlue
1024x1024
Prime Dock Icons 2
Chat
MediumTurquoise
512x512
Shiny Icon Set
talk, Chat
DarkKhaki
64x64
Chat, talk
48px icons 1
Olive
48x48
48px icons
Farm-fresh
Chat, for, qip
YellowGreen
32x32
Once
talk, references, forum
GreenYellow
One bit
Comment, Chat, Text
Teal