PNG ICO ICNS MORE
Fugue
Small, Contrast, low
DimGray
16x16
low, Contrast
low, Small, brightness
DarkGoldenrod
Human-O2
security, low, Breach
DarkRed
128x128
Audio, volume, low
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GNOME Desktop
Gnome, low, security
Black
64x64
low, charge, Battery
Audio, Gnome, low
Starck
history, low, Clock
Gold
256x256
Buuf
images, quaility, low
DarkSlateGray
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Mixed
Outline
Interface
low brightness, low, brightness
512x512
bitsies!
low, Dead, charge
power, charge, Battery
UI
Glyph
Google Material Design icons
low, brightness
Hawcons
thermometer, low
low, thermometer
Network & communications
Material Device
low, cellular, Bar
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Wifi, low, signal
Smooth
Taskbar Notifications
volume, low, Control
Typicons
Battery, low
Windows 8 metro style
Importance, low