Ключевые слова: abstract, ancient, avenue, background, block, circular, cobble, concentric, concrete, curve, exterior, footpath, geometric, granite, gray, ground, halftone, hexagon, historic, illustration, material, outdoor, patio, pattern, paver, paving, pedestrian, retro, road, rock, rough, sett, shape, sidewalk, square, stone, structure, surface, texture, textured, tone, urban, various, vintage, walkway, wall, wallpaper, white,