OptionalactiveOptionalglobal_The element-level global (master/detail cross-) filters to re-apply as a transient overlay on every DETAIL panel. Restored as one unattributed bucket: the next selection on any master replaces it.
OptionallayoutOptionalmastersThe master (filter-source) panels, by saved panels key. An id not in
panels warns and is dropped.
The parse target of a whole-element config in [
PerspectiveViewerElement::restoreWorkspace]. Mirrors [WorkspaceConfig], butpanelsentries are [ViewerConfigInitial]s — every entry creates a NEW panel, sotableis required by type (a stray per-panelsettingskey is ignored; it is element-level state, carried by the top-levelactivefield).