SVG

An SVG (Scalable Vector Graphics) fragment. Because SVG is valid inline HTML5, the HTML backend embeds it verbatim (trusted passthrough, same policy as text/html). Transformations build SVG strings via the expression DSL — typically as a Concat of string-literal chunks interleaved with ontology-driven dynamic values — and wrap the result in a RawBlock for composition into a larger Document. This is how a visualization designer controls how types, instances, and their relationships should be drawn: write a transformation whose rule tree emits SVG, bind its dynamic parts to ontology property reads, and either output a standalone .svg file or compose the RawBlock inside a Document's narrative children to embed the visualization inside an HTML report.