Ключевые слова: 4, background, black, business, characterisation, characterization, colorful, colors, colourful, colours, concept, creative, creativity, cutout, equipment, fluorescent, four, gray, green, grey, highlight, highlighter, identification, identification mark, identification marking, important, isolated, luminosity, mark, marker, marker pen, neon, objects, office, office equipment, office supplies, orange, paper, pen, pink, red, stationery, text, tool, underline, white, yellow,