DipoleChrome

The shared convention for rendering a dipole's connector — the dashed line joining its endpoint markers. A single source consumed by every renderer, so the same dipole reads the same way everywhere.

The connector is not styled separately: its color is the dipole style's ShapeStyle.fill (a dipole's endpoint markers are fill-painted, so fill is its single color), its stroke width is the style's ShapeStyle.size times WIDTH_RATIO, and its dash pattern alternates DASH_ON units painted with DASH_OFF units skipped, in the renderer's units.