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Base Software
exclamation, wrong, Alert
Black
256x256
Alert, protect, Guard
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Crystal Clear Actions
wrong, Alert, no access
Error, warning, wrong
Down, fall, download
Phuzion
Alert, Error, wrong
Juicy Fruit
exclamation, Error, wrong
Network
exclamation, Error, warning
GNOME Desktop
climate, severe, Error
64x64
Refresh CL
warning, wrong, Alert
Error, wrong, exclamation
Radium
Error, wrong, Alert
Soft Scraps
button, Error, wrong
Web
Error, world, globe
warning, Error, Alert
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Mixed
Outline
70 basic icons
delete, Close, remove
512x512
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UI
Linecon
cross, remove, delete
Signs & symbols
3D
Free 3d Glossy Interface Icon Set
erase, err, reject
stop, remove, Error
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Desktop apps
Free Applications Icons
delete, no, Cancelled
24x24