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Vance IngallsandClaude Fable 5
d6d0fccbf2
A figma text node whose box is shorter than its line-height carries vertically-trimmed (cap-to-baseline) bounds. The mapper positioned the box at those bounds but let the browser lay glyphs with half-leading, pushing them ~6px low on a 70px font (glyph-centroid measurement against figma's own render: +9.1px vs figma's +3.4px inside the same pill). Emitting text-box-trim: trim-both / text-box-edge: cap alphabetic reproduces the trim in the render engine; post-fix centroid agrees within 0.4px and the motion verifier's min window score improved 20.3 -> 25.3dB. Trim applies only to single-line trimmed text; boxes matching their line-height are untouched. Skill: component imports now include a static fidelity self-check step against figma's PNG export of the same node. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>