Ключевые слова: abstract, alternate, alternating, background, basic, black, block, board, cell, check, checker, checkerboard, checkered, chequered, chequred, chess, classic, contrast, cube, different, flag, floor, geometric, geometry, grayscale, greyscale, grid, irregular, marble, mesh, mono, monochrome, mosaic, pattern, plane, rectangle, regular, repeatable, repeating, repetition, sample, seamless, simple, square, surface, texture, tile, tiling, white,