Ключевые слова: abstract, background, black, business, circle, collection, company, concept, connect, creative, design, drawing, element, endless, figure, frame, geometric, geometrical, geometry, graphic, icon, idly, illusion, illustration, impossible, infinity, isolated, logo, loop, mathematics, modern, object, optical, paradox, penrose, set, shape, sign, simple, star, style, symbol, tattoo, template, triangle, unreal, visual, white,