Ключевые слова: alert, arrow, attention, background, banner, billboard, blank, blue, board, button, collection, construction, danger, emergency, empty, flash, highway, icon, illustration, information, internet, isolated, notice, post, prohibition, red, risk, road, safety, set, shadow, sign, signage, signpost, sticker, street, symbol, text, traffic, under, warning, way, web, website, white, www, yellow,