Ключевые слова: abstract, black, block, bw, centrifuge, circular, colorless, distortion, eddy, effect, geometric, geometry, graphic, grayscale, greyscale, gyration, gyre, helix, illustration, lines, minimal, misc, miscellaneous, monochrome, monocrome, optical, quadrangle, quadrate, radiating, revolve, rotary, rotating, rotation, spiral, square, swirl, torsion, twirl, twist, uncolored, visual, vortex, whirl, whirligig, whirlpool, white, whorl,