Ключевые слова: art, business, button, check, checkbox, checklist, choice, clipboard, concept, contour, design, document, education, eraser, exam, examination, flat, form, green, icon, illustration, isolated, line, linear, lineart, list, long, mark, note, office, outline, page, paper, pencil, questionnaire, quiz, report, result, school, shadow, sheet, sign, square, success, survey, symbol, test, tick, white,