PNG SVG PSD EPS MORE
other
Flat
Vaadin icons
settings, Improvement, repair
DarkSlateGray
512x512
PNG ICO ICNS MORE
Mixed
Things
configuration, Control, settings
Mobile apps
Hex ICO
settings
128x128
Computer & hardware
Ballicons (free)
Parameters, settings, preferences
PNG MORE
Simply 8-bits #10
96x96