PNG ICO ICNS MORE
Desktop apps
Glyph
16x16 Free Toolbar Icons
settings, tool, config
SteelBlue
16x16
Cartoon
Seed
settings, configuration
DarkSlateGray
128x128
Smooth
Farm-fresh
configuration, Gear, Cog
Black
32x32
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3D
Free Applications Icons
conf, Options, Desktop
24x24
Wrench, configuration, Options