Page-level ink rendered as a read-only placeholder, and "s: late at night" did not open at
all: its one stroke is a straight vertical line, so the placeholder had zero width. Strokes
now draw as pen-width capsules (square-ended for a rectangle tip) in their colour and
transparency, reusing the rounded-rectangle distance in a rotated frame, and count toward
the scroll bounds. Positions and colours match native captures of corpus/ink-edit.

Assisted-by: claude-opus-5.5