Ключевые слова: 3d, abstract, background, color, concept, connection, design, dot, dotted, effect, element, emblem, endless, escher, flat, form, geometric, geometry, graphic, half, halftone, icon, illusion, illustration, impossible, infinite, infinity, isolated, isometric, knot, line, logo, modern, object, optical, particle, penrose, pyramid, science, shape, sign, style, surreal, symbol, technology, three, triangle, triangular, unreal,