d45b23ebbe
blend-bit-vs-oracle.txt entry 2: ptbtn00 alpha-over, ptbtn00f ADDITIVE -- the PRESS (A) plate and its own highlight, one bit apart. Entry 4, the whole title, is alpha-over throughout including ptlogo_back2/ptlogo_back2eff, which independently kills the "frame-shaped and mostly transparent means additive" rule I declined to adopt. Bands are now per DRAW OP rather than per paint-order entry: one band per element cannot express base alpha-over with its own focus record additive. The change reported zero three times and each zero had a different cause. First, additive_elements was assigned to `view` in three places and to `overlay` in none, and the plate is an overlay -- every other decoded rule on that page goes to both. Second, I then measured that the element is never drawn, suppressing its sprite at six times across the cycle for 0 px every time, and was one commit from filing "the port never draws the plate highlight" as a defect. That sweep was invalid: I varied --time while passing --loop-phase=0 in every run, and --loop-phase pins exactly the clock a looping record runs on. Six samples of one phase. Third, swept properly, ptbtn00f contributes 0 px at phase 0 and 22-29k px at phases 20-100 -- and verify-capture's title_plate row poses at loop-phase 0. The row that validates the plate is blind to the plate's pulse by construction. It correctly reports 13.03 / 0.09 % unchanged while the fix moves 26 319 px at phase 20. Stated in the tool next to the pose. Not verified against the oracle: every title-plate capture we hold is at the blind phase, so no capture here can confirm the port now draws it right. Asked.
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.