This reverts commit 7242ea22.

* Added support for surfaceTintColor and shadowColor to the Dialog widgets.
* Updated the defaults for Material.shadowColor and Material.surfaceTint to allow turning off the features with a transparent color.
* Added support for shadowColor and surfaceTintColor for Drawer widget.

This reverts commit 79013b2b.

* Add clipBehavior to Card+InkWell example

* Add test for example

* Update comment

This reverts commit b3aba4d9 because it breaks Google tests.

* Revert "Revert "Set `IconButton.visualDensity` default to `VisualDensity.standard` (#109349)" (#109421)"
Co-authored-by: Qun Cheng <quncheng@google.com>

This reverts commit 3070baf1.

* Set IconButton's visualDensity to standard
Co-authored-by: Qun Cheng <quncheng@google.com>

* Hide the debug banner in the PopupMenuButton example

* Add test to verify that debug banner is not shown

Explain the "patching" protocol in `KeyMessageManager.keyMessageHandler` and add an example (#105280)

* Added an example for IndexedStack

* Added tests for the IndexedStack example

* Fixed type issue for onSubmitted callback functions

* Fixed documentation and moved files to their appropriate places

* Fixed documentation and moved files to their appropriate places

* Moved test files to their appropriate places

* Moved test files to their appropriate places

* Fixed file path in documentation

* Remove trailing space

* Formatting changes

* Remove extra line

* Further formatting changes

* Further formatting changes

* fix comma and inline
Co-authored-by: Greg Spencer <gspencergoog@users.noreply.github.com>

* Formatting

* indentation and formatting

* Formatting

* Formatting

* Formatting

* Removed duplicate chevron

* better wording on documentation
Co-authored-by: Tong Mu <dkwingsmt@users.noreply.github.com>

* Added testing for state preservation
Co-authored-by: Greg Spencer <gspencergoog@users.noreply.github.com>
Co-authored-by: Tong Mu <dkwingsmt@users.noreply.github.com>

This reverts commit 180566f2.