Ключевые слова: air, art, audio, brick, camera, cctv, contour, design, digital, equipment, film, focus, glowing, guard, icon, illustration, image, isolated, lens, light, line, linear, lineart, mic, music, neon, network, outline, picture, protection, radio, record, safety, security, sign, sound, studio, surveillance, symbol, system, technology, video, voice, wall, watch, wifi, wireless,