Ключевые слова: abstract, art, backgrounds, blue, cartography, circle, city, coded, color, colored, colors, computer, connection, design, diagram, element, generic, graphic, gray, green, guidance, illustration, illustrations, image, line, locations, map, mass, node, orange, painting, plan, public, purple, scene, seamless, sign, single, speed, station, subway, tile, transport, transportation, travel, urban, wallpaper, white, yellow,