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UI
Smooth
Stuttgart
elephant, Animal
DimGray
32x32
Mixed
Bunch of Bluish Icons
insect, Animal, bug
Black
512x512
Animals
Monster icons
squirrel, creep, Animal
SaddleBrown
48x48
Sports & awards
Fight club
Animal, tux, linux
CadetBlue
128x128
Desktop apps
One bit
Animal, bug, insect
Chocolate
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Web 2.0 Origami
Animal, Blue, bird
100x100
Computer & hardware
Crystal Project
Babelfish, Animal, fish
256x256
bug, ladybird, Animal
cobra, Animal, snake
DodgerBlue
Futurosoft
mule, Animal
Network & communications
Oxygen
ladybird, Animal, bug
Animal, Penguin, tux
papillon, Animal, Staroffice
Function icons
bird, Blue, Animal