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Sylpheed/docs
Sylpheed port agent 4e5aea31a2 port: second witness for the pixel-cost claim, in Godot
The Decoder rendered the 62 deciding builds twice and found changed pixels equal
the composite's entire ink on all 38 .prm deciders, with build_12/15 at 49771 px.
Checked in Godot, which shares no code with their compose: with the rule 59530 px
(>0) / 48368 (>1), WITHOUT it exactly 0 at both thresholds.

So the strong form holds -- removing the rule does not dim the screen, it takes
the ink to zero -- and this is a real second witness, unlike last iteration's
re-run of their own instrument. Their 49771 sits 2.9% above my >1 count: a
threshold convention on a mostly-dark frame, recorded so nobody later reconciles
two figures that were never counting the same pixels.

Method: applied THEIR fallback (sprite key, else implied, else u32::MAX) to the
export's element list and swapped only paint_order on one screen, so the renderer
and every other input are identical and the order is the only variable.

Also records their point 4 -- the 24 .tbm deciders measured zero because compose
draws no .tbm pixels at all, a control that could not fail. Fourteenth instance of
the shape, and the first caught by the other agent using the frame.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01N7FiFFFwbvG2uxdcEh8HyF
2026-08-30 07:05:35 +00:00
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