Ключевые слова: attention, backdrop, background, banner, barrier, black, border, caution, construct, construction, danger, dangerous, design, diagonal, frame, graphic, grunge, grungy, hazard, hazardous, illustration, industrial, industry, isolated, line, notice, old, pattern, police, risk, road, safety, security, sign, stop, street, striped, stripes, surface, symbol, tape, textured, transportation, urban, wall, wallpaper, warning, yellow, zone,