Three days stuck on LED feedback that had never once been observed lighting a
physical LED: every validation ran against a fake aseqdump stream. PLN confirmed
the hardware works on 2026-07-28. Building the mock surface took under an hour
and immediately explained the complaint that had survived two rounds of fixes —
the DJ filters rest at BRIGHT AMBER, which is filter_colour(64) behaving exactly
as designed and visually identical to the factory yellow he was trying to escape.
Correct and looks-broken were the same picture.