Task 6 registered Type 3 -> UiField globally, which broke acdream's Type-3 dat
elements: in these layouts Type 3 is sprite-bearing CHROME (the 8-piece bevel
corners, e.g. vitals 0x10000633 -> sprite 0x060074C3) and the transcript/input
CONTAINER panels — NOT editable fields. UiField draws no dat sprite, so the
vitals bevel corners would render empty; the regression was masked by weakening
VitalsTree_ChromeCornerHasExpectedSprite (UiDatElement+sprite -> UiField+exists).
Retail Type 3 IS UIElement_Field, but retail draws those chrome elements as inert
media-bearing Fields, which our UiDatElement reproduces pixel-for-pixel without a
spurious focus/edit affordance. The one true editable field — the chat input
0x10000016 — resolves to Type 12 and is controller-placed as a UiField (Variant B,
kept). So Type 3 stays on the generic fallback; register it as UiField only when a
window carries a factory-built editable Type-3 field (and UiField grows a
background-media draw + an opt-in editable flag then).
Restored the chrome-corner conformance test (asserts UiDatElement + sprite, an
early warning if Type 3 is ever wrongly routed to UiField). Kept the good Task-6
work: UiField rename + the Variant-B input wiring (stray Type-12 placeholder
removed). Full suite: 404 passed, 2 skipped, 0 failed.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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