Ключевые слова: art, background, bright, business, circle, color, colorful, concept, contour, design, development, earth, element, engineering, equipment, gear, global, globe, glowing, green, icon, illustration, industrial, industry, internet, isolated, light, line, linear, lineart, machine, machinery, mechanical, mechanism, modern, neon, network, outline, planet, power, purple, sign, symbol, technology, web, wheel, world,