The Leadlight

The Burning Ship map z -> (|Re z| + i|Im z|)^2 + c iterated over the parameter plane, framed at c = -1.7766 - 0.0620i with half-width 0.020 on a twin-spired tower of the main ship's western rigging. Colour is orbit traps end to end. How deep the orbit dived toward the two coordinate axes picks the glass off a hot-to-cold ramp, a circle trap and the equipotential cut the plane into panes, and the band edges of all three are drawn as the leading.