Ключевые слова: access, background, barriers, bright, caution, color, communication, concept, conceptual, control, design, devices, digital, element, entry, graphic, illustration, image, limit, live, mobile, modern, noentry, object, playful, policy, prohibition, restriction, safety, sign, signage, smartphone, statement, stop, surface, symbol, tech, technology, texture, toy, visual, warning, wooden, yellow,