An Asciidoctor extension that renders protection-relay / logic diagrams written in the Logic Diagram Language (LDL) — the @openpowershift/logic-diagram-language npm package — into SVG or PNG at conversion time. SVG output is vector and embeds cleanly in asciidoctor-pdf; PNG is available via @resvg/resvg-js. Format, scale, theme and label visibility are controlled with AsciiDoc attributes.