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Mixed
Pixel
Simply 8-bits #6
Hylian, shield
RoyalBlue
96x96
Business & finance
24x24 Free Pixel Icons
shield
Black
24x24
PNG ICO ICNS MORE
Network & communications
16x16 Free Application Icons
SteelBlue
16x16
Family & home
IconBeast Lite
shield, round
30x30
UI
Blueberry
protect, on, shield
OliveDrab
32x32
protect, shield, off
OrangeRed
Fugue Icons
shield, exclamation, frame
shield, exclamation
Goldenrod
Information, shield
Minus, shield
DarkRed
plus, shield
Green
question, shield
DarkSlateGray
Arrow, shield
pencil, shield
tick, shield, ok
shield, cross
Mini icons 2
Lavender
10x10
shield, Minus