M3 Expressive's configuration table lists a vertical orientation the library
had no prop for (plan step 24, audit docs/audits/m3-alignment/inputs.md
§ Missing). The drawing is the horizontal one, laid out as long as the slider
is tall inside a size container and turned a quarter anticlockwise, so the
geometry, the sizes and the tokens are untouched; the value label and the inset
icon are turned back so they read across. The keyboard stays the native range's
— Up and Right raise, Down and Left lower — and the inputs say
aria-orientation. A vertical slider takes its length from its wrapper, so the
header, the SKILL.md entry and the showcase all say to give it a height. M3
keeps range sliders horizontal, so `range` wins over `orientation`.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9
