A panel drop-down's command rows are full-width rows that take the theme's hover background (icon, label and shortcut on it) when hovered or focused. Up/Down move the focus through the enabled rows, Enter starts the command, Escape closes the drop-down. Rows publish `dropdown:<id>` and the highlighted one `dropdown_hot:<id>`; scenario s46 checks pointer and keyboard highlight. Fixes #288 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01RjGw4gA5ZvKrU8MQP6sBgT