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UI
Glyph
Windows 8 metro style
magazine
DarkSlateGray
512x512
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Education & science
Handdrawn
Brainy Icons Free — 36 Science and Education Icons
Computer, Notebook, network
Black
64x64
Flat
Flat UI Free
shopping, magazine, ecommerce
Orange
200x200
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Windows 8 icons
26x26
Pixel
Windows 8 Pack (Metro Style)
Desktop apps
Smooth
Farm-fresh
magazine, wrapping
LightSlateGray
32x32
3D
IconFinder Pixel
geek, magazine, nerd
LightSteelBlue
48x48
Sports & awards
Fight club
catalogue, magazine, Call
DarkGray
128x128