The previous clearBodyFocus() set focus = false on navRoot.activeFocusItem
and called navRoot.forceActiveFocus(), which works for plain Rectangles
but not for Controls 2 widgets like ComboBox: the combo keeps an internal
focused child that the surrounding FocusScope happily restores, so the
accent focus border on the Position/Center anchor dropdowns lingered
after backing out to the sidebar.
Add an invisible 1x1 navFocusSink Item inside navRoot and force focus
onto it whenever the user leaves the body (h/Esc/Shift-Tab, category
changes from sidebar nav, or panel reopens). The sink reliably owns
activeFocus so every body control \u2014 ComboBox included \u2014 falls back to
its unfocused style.
Ryan Hughes
3595279dce