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iOS7 optimized
Outline
Streamline - Free
streamline, settings
Black
512x512
settings, streamline
Business & finance
Glyph
FatiCons
Options, preferences, settings
DarkSlateGray
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Mixed
3D
Eziconic v1.0
settings, tool, tools
256x256
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Social media
Handdrawn
Jolly Icons Free – 36 Hand-Drawn UI Icons
Setting, hand drawn, preferences
64x64
Options, preferences, hand drawn
Computer & hardware
Flat
Ballicons (free)
Parameters, settings, preferences
128x128
FEZ
settings, preferences, fez
Gray
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Photography & graphic design
Smooth
Adore
settings
118x118
Simply 8-bits #10
96x96
Desktop apps
wood leather apple icons
516x517
Signs & symbols
Two Tone Design Set
settings, tool, wheel
DarkGray
WPZOOM Developer Icon Set
settings, tools
Files & folders
Soda Red
settings, soda, red
Linecons Free – Vector Icons Pack
Setting, settings, params
32x32 Free Design Icons
tools, Setting, equip
32x32
configuration, Configure, machinery
Gaming & gambling
Photorealistic
48x48 Free Object Icons
configuration, preferences, system
Gold
48x48
Tire, transportation, auto
DimGray
48x48 Free Time Icons
Cartridge, lightning, fastening
watch, Clock, history
Pixel
24x24 Free Pixel Icons
Contact, Control, machine
24x24