Ключевые слова: 2021, alarm, arrow, background, bright, building, case, ceiling, christmas, construction, creative, darkness, direction, door, doorway, down, emergency exit, escape, exit, figure, floor, glare, green, guide, help, holiday, icon, information, instruction, interior, light, light up, metal, modern, new year, route, run, running, security, showing, sign, signboard, symbol, system, warning, white,