Ключевые слова: acceptance, agree, approval, approve, black, business, button, check, choice, confirm, confirmation, correct, decision, defense, design, done, element, good, graphic, icon, immune, isolated, line, linear, logo, mark, ok, option, outline, positive, protect, protection, safe, safety, save, secure, security, select, shape, shield, sign, success, symbol, symbolic, thin, ui, validate,