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Android icons
Clock, Chat, exclamation
Gray
72x72
Chat, Diskette, exclamation
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Matte: Basic
warning, Error, exclamation
32x32
Flavour Extended
warning, wrong, Error
48x48
realistiK Reloaded
warning, exclamation, Alert
128x128
Free Web Design
wrong, warning, exclamation
16x16
Alert, Error, warning
Farm-Fresh Web
Alert, warning, wrong
Tango
wrong, warning, network
Fugue
warning, wrong, Alert
cup, warning, wrong
Error, warning, wrong
UI
Pixel
Fugue Icons
thermometer, exclamation
exclamation, truck
exclamation, cup
Newspaper, exclamation
exclamation, tab, ui
exclamation, blog
bookmark, exclamation, Book