Ключевые слова: abstract, aged, attention, backdrop, background, banner, black, border, caution, composition, construction, danger, dark, design, diagonal, factory, grungy, hazard, illustration, industrial, industries, iron, line, old, pattern, safety, scratched, sign, striped, stripes, symbol, texture, textured, underground, urban, wallpaper, warning, weathered, worn, yellow,