Ключевые слова: app, application, art, audio, blue, button, color, concept, contour, control, design, device, digital, flat, gradient, icon, illustration, interface, isolated, line, linear, lineart, logo, media, messenger, mobile, modern, multimedia, music, mute, off, outline, pictogram, pixel perfect, player, ringtone, sign, silence, silent, simple, smartphone, sound, speaker, symbol, ui, user interface, volume, web,