44930 Navigator 2.0: Refactor the imperative api to continue working in the new navigation system (cla: yes, d: examples, f: cupertino, f: material design, f: routes, framework, team, team: gallery, waiting for tree to go green)

44971 Add clip behaviour to Container (cla: yes, framework, waiting for tree to go green)

45019 Keyboard scrolling of Scrollable (a: desktop, cla: yes, framework)

45067 Set modal bottom sheet barrier color (cla: yes, f: material design, framework)

45074 Set track color in Cupertino Switch and Adaptive Switch (cla: yes, f: cupertino, f: material design, framework)

45079 Step 1 of 4: Make AlertDialog scrollable through opt-in AlertDialog.scrollable parameter (cla: yes, f: material design, framework)