P5 is the lowest unfinished milestone. This does not implement navigation; it
settles how a focused button is drawn, because three claims sat under that and
none had been checked from this side.
Refutation attempts, all three failed -- recorded either way, per PROTOCOL:
* HANDOFF ask 3's '(7,7)' focus offset SURVIVES, and more strongly than
stated: over a 15x14 scan of the whole offset space it is a UNIQUE
ISOLATED cell at 100% coverage on all five buttons, with (6,6) and (7,6)
both below 90%. The centre and pivot alignments reproduce the 78-84%
band the RE agent called misleading.
* ORACLE-CAPTURES' 'a crop, not a scale' SURVIVES. Its own evidence -- a
+/-6 px cross-correlation -- cannot tell a crop from a 0.9375 scale, so
it was re-tested with a scale-sensitive one: button text bands land at
design y + 23 for all three unoccluded buttons, an exactly 1:1 vertical
mapping. (The prose understates 45 missing rows as 'the missing row'.)
* My own suspicion that the declared geometry disagreed with the capture
by 6 px was MY ARITHMETIC ERROR, written up rather than quietly dropped:
I took the top-left as pos - pivot. pos IS the top-left; the pivot is the
anchor scale grows about and cancels at 100%, exactly the 'can be got
wrong invisibly' that screen_view.gd:120 warns about.
What is actually true, and what P5 does with it:
* The exporter ALREADY emits the focus record's second element, the 42x46
ring ptbtneff01, for all five buttons. That gap is in the renderer, not
the exporter -- nothing to change in crates/sylpheed-export.
* Base minus focus is (7,7) directly from the declared positions, so P5
draws each focus element at its own pos and authors no constant.
* ptbtn04 is 1 px off the 80 px grid ON THE DISC (base rows 162 242 322
401 482; focus rows a clean 155 235 315 395 475). So its base->focus
delta is (7,6) while its art aligns at (7,7). Do NOT derive focus
placement from the base by a constant: it would be wrong on exactly one
button and right on the other four.
Verified against captures rather than our other renderer: diffing
live-main-menu against live-main-menu-options-focused isolates one cluster at
x 506..702, y 398..445, and ptbtn04's focus record under pos-as-top-left spans
x 500..706, y 395..451. Under pos - pivot it predicts x 433..604, y 367..422,
which matches nothing in the capture and no other button either.
Also records an instrument that FAILED ITS CONTROL and was discarded: a masked
NCC template matcher returned NCC 0.096-0.206 with three of five results pinned
to the search boundary when asked to re-find the base sprites at their known
positions. None of its output is used. Filed so this is not rebuilt.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Evuhbt8pxKJEUvwfniwYkU
3e280d63de