writes/s: BLE frames actually delivered to the tubes (the light-side ceiling, not the incoming Art-Net rate). deferred/s: frames the write-governor shed to stay at pace — any sustained value > 0 means the source is overfeeding / the lights are at capacity (backpressure). Per-card: MODE is the governor's BBR phase, BtlBw its measured bottleneck bandwidth, rtt the min round-trip (amber if markedly elevated).
Param meaning is per-effect and per-model; the TL120C ignores the legacy
0x88 scene (see PROTOCOL.md). Verify against your fixture.
The palette editor arrives in a later phase (the backend
POST /api/v1/<target>/pixel endpoint already exists).