A box in the line is a character its paragraph places, as a picture is, so the
three frame-toolbar buttons were the paragraph's own alignment under a frame
icon — a second place to look for the same thing. They now show for the band
wrap alone, where nothing else can express the position.
The ordinary command needed one correction to carry that: a selected box is one
node whose range covers its own paragraphs, so aligning it moved the frame and
re-set its text in the same keystroke.