The J. Synchrotron Rad. and J. Appl. Cryst. cards show the paper's first page, the Rugnux card Fig. 2a of the preprint (the open datasets by source), each a ~20-30 kB WebP credited CC BY 4.0 under it, in place of the title pages drawn in HTML/CSS. All three are CC BY 4.0 (Crossref licence records, and the pages say so); the IUCr pages were rendered from the PMC open-access PDFs. The images are added to LANDING_FILES so the documentation build copies them beside index.html. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HVeDQqrMy3Kh9NQw823gEb