Ключевые слова: abstract, anti, backdrop, background, black, blank, border, classic, crest, decoration, decorative, design, element, emblem, empty, frame, front, gray, grunge, hard, hazard, heraldic, illustration, industrial, industry, insignia, iron, isolated, metal, metallic, modern, old, orange, pattern, plate, protection, rivets, rusty, safety, secure, security, shape, shield, steel, stripes, symbol, technology, template, warning, yellow,