Ключевые слова: abstract, background, ban, banner, black, card, circle, concept, danger, design, drawn, element, flat, forbidden, graphic, hand, hazard, icon, illustration, increased, information, isolated, label, message, no, object, pattern, prohibited, rejection, repeater, risk, safety, seamless, seamless pattern, sign, signal, stop, symbol, text, texture, the attention, the caution, traffic, warning, website, white,