Ключевые слова: abstract, alarm, alert, art, backdrop, background, banner, bell, bright, burglar, color, concept, danger, dark, department, design, emergency, emergency light, equipment, evacuation, fire, fire alarm bell, fire extinguisher, fire safety, firefighter, flat, icon, illustration, isolated, light, protection, red, rescue, retro, ring, safety, school, security, security system, set, sign, smoke alarm, smoke detector, style, symbol,