Four original diagrams are generated by the local source into A4 SVG/PDF pairs. The SVGs contain meaningful <title> and <desc> strings and visible full-word labels. The one-page PDFs have selectable text and an embedded DejaVu Sans font, but are untagged; use the exact text alternatives for screen reading and full-word tactile layout. Paper contrast and clipping were visually reviewed on generated renders; that is not an accessibility user test.
DejaVu Sans is governed by the licence copied in dejavu-font-copyright.txt. Our SVG arrangement and teaching copy are CC BY 4.0. The font licence remains separate. No QCAA figure, third-party design model, logo or stock image is embedded.