paintOrigins property
Per-widget-type likely repaint origins (key = widget runtimeType name), debug mode only.
Unlike paintCounts, a widget counts here only in frames where it was the likely origin of its layer's repaint, so widgets that repaint only because they share a layer with it are left out. Counts are per instance; see PaintOriginStats.
Implementation
final Map<String, PaintOriginStats> paintOrigins;