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Education & science
Filled outline
Colourful Education
Light bulb, Idea, bulb
Black
512x512
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Tools & construction
Tools
electricity, light, illumination
SandyBrown
365x512
Mixed
Line color mix Vol.1
Electric, Check, bulb
OldLace
Line color mix Vol.2
Electric, Light bulb, new idea
Network & communications
Line color mix Vol.3
bulb, new idea, Check
DarkKhaki