Filmstrip of one chart per selected PID. Each card pulls its
color / label / unit from the PID catalog and renders a single-
series LineChart at a fixed sub-chart height. Unknown PID keys
(e.g. a previously-saved selection whose key was renamed) are
skipped silently — the picker drawer will never offer them, so
this only matters for forward-compat with persisted state.
Empty selection renders a centered helper line steering the user
toward the picker drawer.
Filmstrip of one chart per selected PID. Each card pulls its color / label / unit from the PID catalog and renders a single- series
LineChartat a fixed sub-chart height. Unknown PID keys (e.g. a previously-saved selection whose key was renamed) are skipped silently — the picker drawer will never offer them, so this only matters for forward-compat with persisted state.Empty selection renders a centered helper line steering the user toward the picker drawer.