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UI
Pixel
Fugue Icons
Chat, Box, balloons
SaddleBrown
16x16
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Sketchdock Ecommerce Icons
grey, talk, Chat
LightSteelBlue
24x24
PC 100 Icon Pack
Chat, Communication
DarkOrange
32x32
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Super Simple Grey Series
talk, Chat
DarkGray
64x64
WooFunction Icon set
Chat, speech bubble, Comment
Gainsboro
Tiny icons
Chat
Silver
10x10
Sweetie Web Communication
Comment, Chat, talk
Tango
Chat, references, talk
Black
Vaga
Chat, Comment, Add
LightSlateGray
delete, talk, Comment
IndianRed
Comment, talk, Chat
DimGray