Files
Sylpheed/docs/re/data/splash-settle-window-retraction.txt
sylph-decoder 3356343cad re: RETRACT the splash settle windows -- --build takes an ORDINAL, not an entry
The port recomputed the publisher splash's widest keyframe-free gap as 190 units
against my 8 and said one reading must be wrong. Mine was, and the library was
never wrong -- only my invocation.

From the file: entry 10's union of times is [0,15,30,45,235,239,251,255], widest
gap 190, and settle_window() returns Some((45,235)). Entry 11 gives 145. Both
match the port exactly.

The cause is that screen render --build N takes a BUILD ORDINAL. screen list says
[10] entry 12 and [11] entry 15; the splashes are entries 10 and 11 and are not
screen builds at all, so my --build 10/11 rendered the LOADING screens. This is
the foot-gun HANDOFF already documents, which the port caught months ago in the
mirror direction.

Three retractions:

1. 'Width does not predict quality' -- withdrawn. It rested entirely on the
   splashes being width 8 while winning 75x. They are the widest of the five, so
   width and mid-ramp are perfectly confounded across every screen either of us
   has measured and the width hypothesis is NOT refuted.

2. 'My filter excluded the splashes' -- withdrawn; at 190 and 145 they were never
   near the 10-unit cutoff. The other half stands: it admitted the 10-19 bucket,
   the worst at 45.1 %.

3. The splash rows of settle-vs-rest-against-captures -- void. They scored
   loading-screen renders against splash captures. I discarded them for a railed
   gamma fit; the real reason is that they were the wrong screens, and the railing
   was that mismatch surfacing where my instrument could report it.

Surviving: the title row (ordinal 4 = entry 4) and the disc-wide censuses, which
iterate pak entries directly and never touch the ordinal path.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Wuu56cE8vJGTBtn1ppsk8v
2026-08-30 12:59:29 +00:00

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# RETRACTION: the splash settle windows are 190 and 145, not 8 -- and the
# width hypothesis is NOT refuted. 2026-08-30.
#
# The port agent recomputed the publisher splash's widest keyframe-free gap
# as 190 units against my reported 8, and said one reading must be wrong.
# It was mine, and the library was never wrong -- only my invocation.
#
# examples/settle_window_check.rs, straight from the file:
#
# entry 10 palogo_sqex.t32 [0 15 30 235 239 251 255]
# palogo_sqex_eff.t32 [0 15 30 45]
# union [0,15,30,45,235,239,251,255] widest gap 45->235 = 190
# settle_window() -> Some((45, 235)) <- 190, matches the port
#
# entry 11 union [0,15,30,45,190,194,206,210] widest gap 45->190 = 145
# settle_window() -> Some((45, 190)) <- 145, matches the port
#
# 🔴 THE CAUSE: 'screen render --build N' takes a BUILD ORDINAL, not a pak
# entry. screen list says so directly:
# [10] entry 12 [11] entry 15
# The splashes (entries 10 and 11) are not screen builds at all. My
# '--build 10' and '--build 11' rendered the LOADING screens.
#
# This is the foot-gun HANDOFF already documents -- the port caught it months
# ago, writing that an ordinal-keyed '10'/'11' names the publisher wordmark
# and developer logos as loading screens 'and everything still validates'.
# I walked into the mirror image of it.
#
# WHAT THIS RETRACTS:
#
# 1. 'Width does not predict quality' -- WITHDRAWN. It rested entirely on the
# splashes being width 8 while winning 75x. They are width 190 and 145,
# the WIDEST of the five screens. Width and mid-ramp are now perfectly
# confounded across every screen either of us has measured, exactly as the
# port said. The port's predictor may still be the mechanism; this evidence
# does not establish it over width.
#
# 2. 'My rest_vs_settle filter excluded the splashes' -- WITHDRAWN. At 190 and
# 145 they were never near the 10-unit cutoff. The filter's other fault
# stands: it admitted the 10-19 bucket, the worst at 45.1 % mid-ramp.
#
# 3. The splash rows of settle-vs-rest-against-captures.txt -- VOID. They
# scored LOADING-SCREEN renders against SPLASH captures. I discarded them
# for a railed gamma fit; the real reason is that they were the wrong
# screens, and the railing was that mismatch showing up in the only place
# my instrument could report it.
#
# ✅ WHAT SURVIVES: the title row (build ordinal 4 = entry 4, correct), where
# settle beats rest 4.6x on differing area at an interior gamma. And the
# disc-wide censuses, which iterate pak entries directly and never touch
# the ordinal path.
#
# ⚠️ To render a splash: entries 10/11 need 'screen render --all', which
# renumbers --build over every composable bundle.