Ключевые слова: active, alert, atomic, background, black, bomb, button, caution, chemistry, color, construction, danger, dangerous, dark, death, design, dirty, energy, environment, grunge, hazard, hazardous, health, icon, illustration, industrial, industry, material, nuclear, orange, power, radiation, radioactive, radioactivity, risk, safety, security, shape, shiny, sign, stain, symbol, technology, texture, toxic, wallpaper, warning, waste, wood, yellow,