console black/white reversed?

From: Gary Aitken <freebsd_at_dreamchaser.org>
Date: Fri, 15 Nov 2024 21:30:45 UTC
Somehow I managed to get vt1 reversed, so it's displaying black on white.
I've tried power-cycling the display and "reset", but neither helps.
All the other vtys still come up white on black.
What did I do to get here, and what's the magic to restore sanity?

Thanks,

Gary