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Signs & symbols
Glyph
Web UI
Safe, Circle, privacy
Black
512x512
Web UI color
green, Lock, secure
LightSeaGreen
Outline
User interface
Lock, secure, security
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Buttons
Block, ban, Adware
Firebrick
Flat
Circle Icons
locked, Lock, secure
SandyBrown
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Smooth
Two Tone Design Set
Unlock, password, security
Chocolate
128x128
security, secure, password
DarkSlateGray
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34aL volume 3.2 SE
password, Lock, secure
DodgerBlue
24x24
password, secure, login
LightSteelBlue