7fef6d0678
The Decoder logged RB_BLENDCONTROL0 per draw in Canary on both screens. 0x01010101 is src=ONE dst=ONE, additive. That makes the blend a transcription rather than my proposal, and they withdrew the "any blend you choose is authored" instruction explicitly. Their control is what licenses the change: one pixel shader, 0xE59B2B3DA4AA9008, runs with BOTH blend states on the main menu -- 12 additive draws and 18 alpha-over. The frames and ptbase share a shader; only the blend register differs. authored/rendering.json gains additive_elements per screen. Every id is a measured draw and the reach is written beside it. verify-capture: main_menu 13.21 -> 10.67 (0.06 % -> 0.02 %), extras 13.38 -> 11.43, main menu with ptbtn04 focused 13.82 -> 11.36. Per element, ptframe1 22.72 -> 4.17 and ptframe2 13.09 -> 3.32. Neutrality control, free with the table: publisher_logo 2.17 and developer_logos 3.05 are unchanged to the digit. Those are the screens whose metric is absolute and they carry no additive element, so the rewrite that routed every draw through RenderingServer canvas items did not change the picture. The improvement is the blend, not the plumbing. RenderingServer rather than child Node2Ds because boot.gd calls view.queue_redraw() from nine places and none reaches a child node -- bands would paint the previous pose, which under --script=wait is a plausible wrong capture rather than an error. Runs are recomputed per frame: the additive elements are consecutive on both measured screens, and that is an accident of those two screens. And the change first ran with the material left at its default MIX, moving ptframe1 from 22.72 to 22.69. Nothing errored and a 0.03 move is a plausible negative result. It was caught only because the measurement predicted a large move. Not done: ptframe4 is now the worst element on EXTRAS at 16.19x the frame mean and additive would plainly help it. It is not in the measured table, so it is not in the file. Filed in BLOCKED.md with pteff21/22/23, which are also in no captured draw. Refuted, mine: "neither frame has a fully-opaque pixel" was true and was not the discriminator -- pteff10 has max alpha 130, no opaque pixel, and measures nearly exact. The direction survived; the reason for it did not.
Authored decisions
Everything here is a decision we made, not something the disc said. It is
hand-written, committed, and survives a re-export — unlike export/, which is
regenerated wholesale and must never be hand-edited.
Every entry carries a why. When the RE agent decodes the real answer, delete
the entry and let the exporter emit it; that deletion is the measure of
progress.
See docs/FORMAT.md for the schemas and docs/BLOCKED.md for which HANDOFF
question each placeholder is standing in for.