Ключевые слова: abstract, angry, assessment, background, banner, button, color, concept, cons, customer, design, emoji, emoticon, emotion, emotional, emotions, expression, face, feedback, green, happy, high, icon, icons, like, medical, modern, mood, negative, neutral, opinion, ordeal, paediatrics, pain, positive, rating, reaction, red, sad, satisfaction, scale, set, sign, smile, smiley, survey, symbol, testimonials, vote, yellow,