Ключевые слова: abstract, background, bar, bars, black, border, cage, cell, chain, design, fence, frame, freedom, gate, graphic, grate, grunge, illustration, iron, isolate, isolated, jail, link, mesh, metal, metallic, net, netting, pattern, prison, protection, safety, security, shape, sharp, silhouette, silver, square, steel, texture, white, wire,