Ключевые слова: android, app, application, background, black, cellphone, close up, closeup, concept, copy space, dark, design, device, digital, display, download, drops, education, empty, flat lay, foreign language, icon, illustrative, information, isolated, language, learning, logo, minimal, minimalist, mobile, nobody, object, online, page, phone, play store, screen, search, sign, smart phone, smartphone, store, surface, symbol, technology, telephone, top view, touch screen, white,