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Mobile apps
Handdrawn
Web - Watercolour
refresh, rotate, Arrow
Black
512x512
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Mixed
Social Messaging & Productivity
Connection, uploading, Downloading
save, Arrow, Down
navigation, safari, Arrow
yes, ok, tick
sync, Direction, Arrows
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Halloween
Spooky Icons — Halloween
Dead, spooky, scary
64x64
Education & science
Brainy Icons Free — 36 Science and Education Icons
hand-drawn, recycle, environment
UI
Hand Drawn Web Icon Set
Down, Arrow
OliveDrab
128x128
Arrow, Left
Arrow, Redo
refresh, Arrow
right, Arrow
Undo, Arrow
Up, Arrow
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Avatars & smileys
RM Kute Toolbar Icons
Go, Arrow
IndianRed
25x29
Desktop apps
Marker-Style Icons
Arrow, right
Web Design Creatives
Arrow
Left, Arrow
DarkSlateGray
Arrow, download, Down