Every viewer gets a button before the close button that switches between
Centered (today's framed dialog) and Full screen (the whole browser window,
edge to edge); it names the view it switches to. In full screen the details
stay toggleable. System > Appearance gains a Viewer surface with "Open viewer
in: Centered / Full screen" and the moved "Collapse viewer details by
default"; the choice is a browser display preference (viewerOpenMode). The
button changes only the current view and hides at 700px and below, where the
viewer is already full-bleed. Recorded as D156.
Vito Sansevero
eac4ac7ea2