Ключевые слова: alert, apocalpyse, armageddon, attention, background, beware, biological, black, button, caution, chemical, chemistry, danger, dangerous, death, design, dirty, emblem, glare, grunge, grungy, hazard, hazardous, icon, illustration, industrial, label, oxidant, pictogram, precaution, protection, risk, safety, security, sign, signal, sticker, stop, substance, symbol, technology, toxic, triangle, warning, weapon, yellow,