Ключевые слова: abstract, america, american, article, background, brush, changed, collection, color, concept, country, creative, design, drawn, element, flag, government, hand, icon, illustration, ink, iowa, isolated, line, logo, mark, marker, national, official, paint, patriotism, pen, pencil, scribble, set, shape, sign, simple, sketch, state, stick, stripe, symbol, underline, united states, us, usa,