Hand contrast, and the nudge stops asking to be dismissed.
The hour hand now reads as one color everywhere it appears, deep dimming no longer turns orange petals green, and the petal-depth seams stop going green with them. A hand-contrast trial sits behind a wall switch so three candidate mechanisms can be compared on real hardware.
The button acknowledgment of a focus nudge is gone. It is a reminder nudge, not an alarm to be called off: the acknowledgment is looking up and letting it change what you do next, which happens in the room and not on the device. The buttons set the time and nothing else. Every nudge is identical now, so the tenth asks the same way the first did.
Docs: the ring mapping is corrected. Seconds and minutes share the outer 60, the way they share one track of marks on a real clock, and the hour hand is an arrow-shaped spoke across the 24 and the 12. The web UI moved to the top of the README with a screenshot, and the print guide gains the desk-versus-wall back plate choice.
Flash it from the browser at https://maestro8484.github.io/ChronoBloom/flasher/, or put the plain .bin through the clock's own /update page. The zip holds the 8 inch V13 print files and the 15 inch set.