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Avatars & smileys
Pixel
Gowemto smileys
smiley, Emoticon, Angry
Gold
16x16
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Gaming & gambling
Simply 8-bits #1
Angry, bird
Crimson
96x96
UI
Windows 8 Pack (Metro Style)
Angry
DarkSlateGray
26x26
Family & home
Shrunk Pidgin Smilies
DarkRed
24x24
Fugue Icons
Mad, upset, smiley
SandyBrown
Mazes
08, Angry
Red
19x19
Snow
WhiteSmoke
32x32