Ключевые слова: abstract, africa, america, art, background, ball, black, business, circle, concept, continent, contour, design, earth, ecology, element, environment, europe, geography, geometric, global, globe, graphic, icon, illustration, internet, isolated, land, leaf, leaves, line, linear, lineart, map, modern, network, ocean, outline, planet, round, sign, simple, sphere, symbol, technology, travel, web, white, world,