The bottom band is now NowPlayingBar.qml's root: full width, flush on the
window's bottom edge, surface-card @ 0.5 over the ambient field like the
HeaderBar, opaque surface-card otherwise. The bar layout (PlayerBar /
NowPlayingBarSmall) paints no background of its own and mounts inset by the
gutter on its left, right and bottom, so the bar's ends still line up with
the content pane's while nothing around it shows the raw field. Both
rejected shapes are documented in place: an inset plate over the raw field
(three sides of raw background, the only zone of the shell without chrome)
and a frame slab behind an inset plate (a bar glued onto a slab). A future
layout inherits the band and the gutter from the seam instead of carrying
either.
cc
vicrodh
d05082eaee