Ключевые слова: accept, adhesive, agree, agreement, answer, approved, arrow, background, check, checklist, choice, collection, concept, confirm, correct, element, exam, examination, hand drawn, handwriting, icon, isolated, manual, mark, message, note, ok, okay, option, paper, perfect, pile, positive, primary, questionnaire, right, right tick, sign, solution, stacked, sticky notes, success, symbol, test, tick, v, white, write, written, yes,