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Desktop apps
Smooth
Free Funktional Icons
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SteelBlue
48x48
Computer & hardware
Blue Bits Basic and Bonus
Arrow, Down, photo
256x256
Down, Application, window
Music & multimedia
Gakuseisean
Down
Mixed
Humility
Go, Down, gtk
UI
Matte set: Basic
32x32
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Ginux
64x64
Business & finance
Pretty Office
Down, Arrow