Two reasons a mark arrived a beat late instead of animating.
The dots and bars carried morphBounds *inside* their own size modifiers, so
the shared bounds had nothing to drive: the dot stayed pinned at 5dp however
far its bar had travelled, and the bar sat at full width from the first
frame, each snapping into place only once the transition ended. The growth
was being clamped away. morphBounds now sits outside the width/height on
both sides. A bar's offset stays outside it — that is where the bar sits,
not how big it is.
The "+N" overflow markers were untagged, so they spent every transition
painted over by the overlay the tagged pieces draw into, exactly as the
selection outline did. Both the compact grid's and the expanded grid's are
now lifted into it.
The outline itself moves to the fast effects spec, as asked: it is a small
mark that only ever appears or disappears, and at the shared pace it
lingered after the thing it marks had already moved.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Jean-Luc Makiola
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