Ключевые слова: 3d, alert, app, banner, beware, black, caution, circle, color, concept, construction, cross, cup, danger, design, environment, equipment, fire, flammable, flat, forest, gas, graphic, hazard, icon, illustration, industry, information, interface, isolated, key, orange, red, risk, safety, security, set, shadow, shape, sign, stop, symbol, tag, three, warning, web, wind, work, yellow,