Thin 4px bottom strip + centered micro-label
A whisper. Faint green most of the time, flips red with slow 2-second pulse when something's down. Designed to live on a TV all day without becoming wallpaper noise — but the eye still catches the color shift instantly.
Bottom-left pill, glow ring, scroll-in on alert
The natural evolution of today's pill. Sized up, gets a soft ~1Hz outer-glow ring when red, and the alert text slides in once from the right then settles. Includes uptime since detection so you can read it at a glance from the desk.
Edge-to-edge bottom band with diagonal hazard stripes
The ceiling. A very dim "ALL CLEAR" band sits along the bottom edge normally — when something goes down, the whole band turns deep red with slow-scrolling diagonal hazard stripes, a bright pulsing red dot, the alert message, host count, and timestamp. From across the room, unmissable.