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Human-O2
updated, Checked, pack
OliveDrab
128x128
NIOME
Checked, correct, check on
DarkKhaki
256x256
iVista 2
check on, tick, yes
Onebit I
check mark, tick, next
DarkOliveGreen
48x48
MISTO
check mark, ok, right
GreenYellow
AFFEL
yes, tick, right
Khaki
Hand Drawing
ok, yes, check mark
DarkGray
Christmas Social Bookmark
bookmark, tick, media
WhiteSmoke
512x512
Radium
yes, tick, correct
Black
Radium Neue
right, correct, check on
YellowGreen
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Basic
Arrow, check on, Forward
64x64
Buuf
tick
Signs & symbols
Glyph
Buttons
Cloud, tick, ok
protect, shield, ok
play, Multimedia, player
SteelBlue
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Business & finance
Outline
TheFreeForty
shopping, receipt, Check
Mixed
Random - Crafticons
Misc, tick
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Free Misc Icon Set 1
good, Check, ok
Flat
Flat Design Icons (Set 2)
tick, approve, Accept
Lavender
UI
Round UI Buttons
Circular, Accept, Go
Tomato
ok, tick, yes
tick, yes, Go
DeepSkyBlue
Linecon
tick, success, yes
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Elysium Icons
mark, approve, Check
DimGray
24x24