Ключевые слова: abstract, back, backdrop, background, black, blackwhite, blocks, board, bw, checker, checkerboard, checkered, chequred, chess, chessboard, colorless, continuous, contrast, cover, drop, endless, graphic, grayscale, greyscale, ground, illustration, marble, minimal, monochrome, monocrome, patern, pattern, pepita, quadrangle, quadrate, repeatable, repeating, repetitive, seamless, shade, simple, square, surface, swatch, texture, tileable, tiling, uncolored, white,