72519 Add –no-launch-browser flag to DevTools pub run command (cla: yes, tool)

72526 Make RenderColoredBox.paint() skip painting color if it’s transparent (cla: yes, framework, will affect goldens)

72530 Slight cleanup in MultiChildRenderObjectElement (cla: yes, framework)

72531 Update Scrollbar behavior for mobile devices (a: fidelity, cla: yes, f: material design, f: scrolling, framework, waiting for tree to go green)

72532 Remove deprecated showDialog.child (cla: yes, f: material design, framework, severe: API break, waiting for tree to go green)

72538 Migrate usage value plugin count off .flutter-plugins (cla: yes, tool)