Five white circles with black outlines demonstrate the visual effect of decreasing stroke-dasharray values, from 30,30 to 1,1, which creates progressively finer dash-and-gap patterns along each circumference. Rendered as static SVG shapes using d3 v5, the example calls d3.select to append circle elements and sets their stroke, stroke-width, and stroke-dasharray attributes directly. The textures library is included but unused in the visible code.