An `<img>`-referenced SVG cannot load an external stylesheet, so the tokens are inlined into all 78 figures either way; what changes is that they now come from `docs/figures.css` rather than from a copy in each generator. The copies had drifted - the label figures were missing the `[data-theme="dark"]` block - and regenerating leaves the feature figures byte-identical. Change-Id: If2ebfb63ffb8d8916609eec682731a272276bf3b