Ключевые слова: abstract, alert, attention, backdrop, background, banner, barrier, black, border, caution, concept, construction, copy space, danger, diagonal, do not cross, emergency, forbidden, frame, gateway, graphic, gray, grunge, industrial, industry, iron, marking, pattern, protection, realistic, reflector tape, restricted, ribbon, rolling gate, safety, security, sign, street, stripe, striped, stripes, surface, tape, texture, urban, vintage, wall, wallpaper, warning, yellow,