Document

slideDeckFrame is the Frame<SlideFrameTheme> this pack registers with a runtime. It owns the fixed 16:9 canvas geometry, palette resolution, and the one-slide-per-composition rule.

Width 1920 × height 1080 (fixed; sizesFromNodeHeights: false). The eight non-frame primitives declare no metrics.svgHeight because the frame provides the canvas, and slideFrame reports the canvas height; the missing-svgHeight warning is silent for this pack.

validateBody: (body) => {
  const [slide, ...rest] = body;
  if (!slide || rest.length > 0)
    return [`an svg render needs exactly one "slideFrame" node, got ${body.length} nodes; …`];
  if (slide.type !== 'slideFrame')
    return [`an svg render needs a "slideFrame" root, got "${slide.type}"; …`];
  return [];
},
		

Called by the SVG surface before drawing. runtime.validate does not call it — it is frame-agnostic; the check runs only on the frame a render names.

wrap: (_header, body, _viewport) => body[0],
		

slideFrame already owns the full 16:9 canvas, so this returns the one body element as the image's root. A host that wants letterbox or watermark spreads the frame value and replaces wrap.

The frame is called slideDeckFrame (qualified) to avoid colliding with the slideFrame primitive type, whose wire name cannot change without invalidating every composition a model has seen. slide in frame: { slide: slideDeckFrame } is the host's chosen name, not something the pack fixes. A render that wants this document asks for { frame: 'slide' }.

The footer's left side always renders the mark and the theme's frame.brandLabel; footer (right side) is the only configurable footer text. There is no node field to replace or hide the mark.

chapter (and chapterNumber, if present) becomes an h2 heading ahead of the body, the same level as a slide title. brand and footer are image-only chrome and do not reach either surface.