Ключевые слова: angry, appraisal, assessment, background, bad, business, cartoon, color, computer, concept, customer, design, emoji, emoticon, emotion, experience, expression, face, feedback, flat, green, happy, horizontal, icon, illustration, isolated, joy, like, meter, modern, mood, negative, poll, positive, rate, rating, red, report, review, sad, satisfaction, score, set, smile, survey, tracker, unhappy, vote, white,