Ключевые слова: accident, advice, alert, attention, aware, beware, careful, caution, danger, dangerous, design, dot, error, exclamation, flat, gradient, grain, halftone, hazard, icon, illustration, important, info, information, line, mark, message, noise, notification, orange, outline, pattern, quality, risk, road, safety, security, set, shadow, sign, simple, stop, stroke, symbol, traffic, triangle, urgent, warn, warning,