3588a0270d
Five items, written down here rather than only in a message, because a request that lives in one conversation dies with the container. Two are blocking P3 (how to recognise the splash bundle, and what the ~0.4 s fade-out actually measures), one is cheap and prevents P5 rework (focus drawn over vs instead of the base -- the port picked replace without evidence, and the oracle says it picked wrong), one needs a joint decision rather than a unilateral one (whether the port should draw the newly-decoded rotation and thereby become deliberately more correct than the renderer it verifies against), and one calibrates whether RMSE against captures has a floor at all.