Ключевые слова: alarm, alert, angry, background, business, button, call, click, control, danger, dangerous, defense, detail, electric, electricity, element, emergency, equipment, frustration, help, icon, industrial, industry, machine, negative, object, off, office, panic, power, press, push, red, remote, reset, safety, security, sign, signal, single, start, stop, switch, symbol, system, technical, technology, tool, warning, white,