PNG ICO ICNS MORE
Business & finance
Glyph
Wireframe mono icons
underline, italic, Font
Black
48x48
UI
Pixel
Fugue Icons
Edit, underline
16x16
Smooth
Ultimate Gnome
Text, underline, Format
DarkSlateBlue
256x256
Computer & hardware
3D
Discovery
Text, Format, underline
32x32
underline, Text
underline
Human o2
Gainsboro
128x128
Gnome icons
24x24
Desktop apps
Splashyfish
underline, Text, rich
DarkGray
Tango
Format, Text, underline
Network & communications
Oxygen
Format, underline, Text
ASP.NET icons
DarkSlateGray
Silk
Text, underline