35499 Added MaterialApp.themeMode to control which theme is used.

35560 Support for elevation based dark theme overlay color in the Material widget

35878 Add flag to use root navigator for showModalBottomSheet

36028 Fix slider preferred height

36088 Add PopupMenuTheme to enable theming color, shape, elevation, text style of Menu

36409 Add searchFieldLabel to SearchDelegate in order to show a custom hint

36880 [Material] Create material Banner component

37038 Update SnackBar to the latest Material specs.

37259 [Material] Add support for hovered, pressed, focused, and selected text color on Chips.

37269 [Material] FAB refactor - remove unnecessary IconTheme