Plot-area skeleton for a Profiles pair-analysis chart (velocity / exertion /
over-time), sized to fill its card body while the /data request is in flight
— a structured ghost in place of a bare "Loading…" line. The Profiles card
(PairChartFrame) supplies the border + title; this fills the plot with the
right-aligned badge row those charts carry plus a generic bar plot. Kept lean
(no facet bar / legend) because the analysis charts have neither — so it lines
up with what actually loads, without adopting the Insights chart chrome.
Plot-area skeleton for a Profiles pair-analysis chart (velocity / exertion / over-time), sized to fill its card body while the
/datarequest is in flight — a structured ghost in place of a bare "Loading…" line. The Profiles card (PairChartFrame) supplies the border + title; this fills the plot with the right-aligned badge row those charts carry plus a generic bar plot. Kept lean (no facet bar / legend) because the analysis charts have neither — so it lines up with what actually loads, without adopting the Insights chart chrome.