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UI
Pixel
Fugue Icons
bug, pencil
DarkGreen
16x16
bug, plus
bug
Mixed
Smooth
Bunch of Bluish Icons
bug, Add
Black
512x512
insect, Animal, bug
Find, bug
Fixed, bug
bug, Info
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Computer & hardware
Cartoon
Oxe Set
MidnightBlue
64x64
Education & science
Basic Set 2
bug, ladybug
DarkSlateGray
Business & finance
Glyph
Wireframe mono icons
insect, bug
48x48
3D
Sophistique night
debug, Definitions, bug
400x400
Desktop apps
Farm-fresh
SaddleBrown
32x32
bug, delete
Edit, bug
Error, bug
bug, Go
bug, Link
bug, Folder
Khaki
Phuzion
ladybird, Animal, insect
128x128
Human o2
bug, Buddy
Firebrick
insect, ladybird, bug