Magenta 5in12 B

Newton's method applied to f(z) = z^12 + z^5 + 1, windowed on the annulus between the fourfold pole at the origin and the ring of seven poles at |z| = 0.8824, where the sevenfold ring crosses the twelvefold basin fan. The braided bead chains are the basin boundary itself. Brightness follows the smoothed iteration count and the captured basin mixes the hue between violet and rose.