Ключевые слова: assistance, background, business, coach, code, color, computer, concept, course, dark, data, development, digital, distance, doodle, drawing, drawn, e, education, elearn, elearning, gray, hand, icons, information, knowledge, learn, learning, lesson, multicolor, online, overlapped, paint, paper, school, sketch, study, success, system, teach, technology, text, texture, think, trainer, training, webinar, white, word,