Ключевые слова: background, blue, bright, building, clear, construction, design, door, doorway, emergency, escape, evacuation, exit, fire, house, information, keep, life, light, lit, material, old, pattern, protection, red, rescue, retro, safety, save, security, sign, signage, sun, sunny, symbol, texture, textured, urgency, vintage, wall, white, window, workplace,