Ключевые слова: abstract, black, burst, bw, centripetal, circle, circular, colorless, concentric, deformation, distortion, edgy, effect, element, form, graphic, grayscale, greyscale, illustration, isolated, jagged, lines, misc, miscellaneous, monocrome, motif, motiff, optical, pointed, radial, radiating, random, round, shape, sharp, single, spikes, spikey, spiky, spines, spiny, uncolored, visual, white, zag, zig, zigzag,