{# Cellular marquee-horizontal BACKGROUND — void ground only.

   Spec (cellular-automata-marquee-current.svg): no LIVE label panel,
   no frame plate; bifamily chrome is just a top-teal hairline + bottom-
   amethyst hairline at the viewport edges. The hairlines now live in
   cellular-overlay.j2 so they render above the scroll-track text — text
   visually slides UNDER them at the top/bottom edges.

   v0.2.16: LIVE-block infrastructure deleted entirely; cellular's full-
   width scroll behavior is now the universal default, no flag needed. #}

{# Void ground (matches shared surface) #}
<rect width="{{ mw }}" height="{{ mh }}" fill="{{ surface_hex | default('var(--dna-surface)') }}"/>
