Ключевые слова: advice, alert, attention, beware, bubble, careful, caution, circle, concept, danger, dangerous, design, error, exclamation, failure, flat, graphic, hazard, help, icon, illustration, important, information, internet, isolated, mark, message, point, problem, red, risk, road, round, safety, secure, security, shape, sign, signal, speech, stop, symbol, traffic, triangle, warn, website, white, yellow,