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Interface
Flat
Essential Collection
Info, Information, round
CornflowerBlue
512x512
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Spirit20
system, question
20x20
system, question, Alt
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Fugue
read, Book, reading
16x16
Photography & graphic design
3D
32x32 Free Design Icons
support, question, help
32x32
Files & folders
Pixel
ExplodingBoy Pixel Icons
question
Smooth
question, system
UI
Fugue Icons
question, Book
Mini
question, Info, help