devtools/panel/tabs/performance_tab library

Classes

PerformanceTab
Live FPS/jank monitor built from CorextraDevTools.instance.performance — modeled on Flutter DevTools' own Performance view (a scrolling frame timeline split into UI/build time vs Raster/GPU time, with a 60 FPS budget line and jank highlighted), scaled down to what's derivable without a VM Service connection: per-frame build/raster durations from SchedulerBinding, nothing from the engine's own trace events.