<x-theme-toggle mode="contrast"> is the picker's row for M3's three levels, marking the one in force so the operating system's setting shows while the choice is system. The scheme picker's dots follow the level on screen instead of always promising the standard colours, and the showcase's colour section puts the three levels side by side — data-scheme beside data-contrast, the way a profile's level blocks key. Plan: docs/plans/material-3-alignment.md, step 7 (core C2). Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9