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Photography & graphic design
3D
32x32 Free Design Icons
mark, checking, spell
Black
32x32
Signs & symbols
Free 3d Glossy Interface Icon Set
yes, mark, validation
64x64
checkmark, Accept, Check
LimeGreen
80x80
yes, ok, Check
Lavender
Accept, ready, tick
Shopping & e-commerce
Bimbilini
ok, Accept, tick
YellowGreen
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Business & finance
Vector icon set
Accept, Check, yes
DarkGray
126x126
UI
Gnome Web Icons
Dialog, 48, tick
DarkOliveGreen
48x48
PNG ICO MORE
yes, ok, tick
Accept, ok, tick
OliveDrab
Arrows
Orb
tick, ok, yes
DeepSkyBlue
128x128
Desktop apps
Free Applications Icons
ok, success, Accept
24x24
Check, good, tick
red, tick, yes
Check, Accept, green
Computer & hardware
Human o2
richtig, right, tick
Mixed
Flavour Extended
ok, tick, Check
ForestGreen