Ключевые слова: accident, alarm, alert, attention, background, beware, black, bubble, button, caution, circle, concept, danger, dangerous, design, error, exclamation, flat, graphic, hazard, icon, illustration, important, information, isolated, mark, message, notice, point, problem, question, red, risk, round, safety, secure, security, set, shape, sign, signal, solution, speech, stop, symbol, warn, warning, web, white,