feat(accent): send the accent to the TV launcher

udt-tv sends the window border's three hues to the tv-debloat launcher
on the TV, which draws its focus highlight's edge as their gradient and
uses the accent for its pill edges and title glow. One HMAC-SHA256-signed
UDP datagram to port 47800; the address comes from ~/.config/udt/tv.json
and the secret is the one tv-debloat deploys. Without either it does
nothing. udt-accent starts it with the other helpers, install.sh links it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/AGENTS.md b/AGENTS.md
index 5a31dee..a069dd7 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -256,6 +256,15 @@ run reads the state first and skips an off bulb; and a request setting colour
 and brightness together, or a colour sent while a brightness fade runs, is
 partly dropped, so colour goes first and brightness after, separately.
 
+`udt-tv` sends the same three hues to the TV launcher of the sibling
+tv-debloat repo, which draws its focus highlight's edge as their gradient and
+uses the accent for its pill edges and title glow. One HMAC-SHA256-signed UDP
+datagram to the TV's port 47800 (the protocol is in tv-debloat's README), the
+TV's address in `~/.config/udt/tv.json` and the secret shared with
+tv-debloat's deploy in `~/.config/tv-debloat/accent.secret`; without either it
+does nothing. There is no reply, so a TV in standby simply misses the change
+and keeps the last colour it took.
+
 **Sublime's, GRUB's and the homepage's accents are replaced, not substituted
 into a placeholder.** GRUB and the homepage are generated by udt-palette with
 the scheme's accent, then rewritten in place, before `udt-grub` and