Ключевые слова: abstract, alarm, alert, arrow, attention, background, black, bright, caution, closepaid, closeup, convex, danger, dangerous, decoration, design, door, electricity, energy, factory, gray, grunge, icon, industry, information, iron, job, label, language, light, lightning, metal, metallic, old, outline, paint, picture, russian, safety, security, sign, stone, symbol, technology, transformer, triangle, voltage, wall, warning, white,