4.0.0 release candidate 3

• DisableAcrylic now fully disable transparency of its decendents Acrylics (#468)
• Do not interpolate between infinite constraints on TabView (#430)
• Do not rebuild the TimePicker popup when already rebuilding (#437)
• ToggleSwitch updates:
  • Use the correct color for DefaultToggleSwitchThumb (#463)
  • Added ToggleSwitch.leadingContent, which positions the content before the switch (#464)
  • Added ToggleSwitch.thumbBuilder, which builds the thumb based on the current state
• Added TextChangedReason.cleared, which is called when the text is cleared by the user in an AutoSuggestBox (#461)
• Call AutoSuggestBox.onChanged when an item is selected using the keyboard (#483)
• Tooltip overlay is now ignored when hovered (#443)
• Do not add unnecessary padding in DropdownButton (#475)
• ComboBox updates:
  • BREAKING Renamed Combobox to ComboBox
  • BREAKING Renamed ComboboxItem to ComboBoxItem
  • BREAKING Renamed ComboBox.backgroundColor to ComboBox.popupColor
  • Implement EditableComboBox, a combo box that accepts items that aren't listed (#244)
  • ComboBox.isExpanded: false now correctly sets the button width (#382)
  • ComboBox's items height are correctly calculated, as well as initial scroll offset (#472)
  • BREAKING ComboBox.disabledHint was renamed to ComboBox.disabledPlaceholder
  • Added ComboBoxFormField and EditableComboBoxFormField (#373)
  • ComboBox.comboBoxColor is now correctly applied (#468)
  • ComboBox popup can't be opened if disabled
• Implemented PaneItemExpander (#299)
• TimePicker and DatePicker popup now needs a minimum width of 260 (#494)
• Correctly align NavigationAppBar content (#494)
• BREAKING Added InfoLabel.rich. InfoLabel is no longer a constant contructor (#494)
• Always add GlobalMaterialLocalizations above ReorderableListView (#492)
• BREAKING Removed ContentDialog.backgroundDismiss. Use showDialog.barrierDismissable (#490)
• Reviewed focus (#496)
  • DatePicker and TimePicker now show the focus highlight.
    Their popup now can be controlled using the keyboard
  • NavigationBody now uses a FocusTraversalGroup to handle focus
    This means the the content of the body will be fully traversed before moving on to another widget or group of widgets. Learn more
  • TreeViewItem now shows the focus highlight. They can also be selected using the keyboard
  • Expander now shows the focus highlight
• Progress Indicators velocity is no longer affected by device frame rate (#502)
• Added AutoSuggestBox.enabled (#504)
• Correctly keep the NavigationView animation state (cf0fae1 ,bd89ba6)
• Calculate selected for all parents as soon as the TreeView is built

What's Changed

• Update README's ScaffoldPage example by @loic-sharma in #466
• Some bug fixes by @bdlukaa in #469
• tr localization by @timurturbil in #470
• Changed source code of second combobox by @DobreRadu in #465
• Some fixes by @bdlukaa in #480
• Fix dropdown button padding issue by @loic-sharma in #476
• Interactive code snippet by @YehudaKremer in #479
• Combobox updates by @bdlukaa in #481
• Pane item expander by @bdlukaa in #299
• Update Arabic translations by @dmakwt in #488
• Live documentation by @bdlukaa in #494
• Some fixes by @bdlukaa in #495
• Focus review by @bdlukaa in #497
• fix: changelog scrollbar wrong position by @DemoJameson in #491
• [localizations] S renamed to FluentS by @bdlukaa in #503
• Fix progress indicator animation speed affected by frame rate by @DemoJameson in #502
• Make the animation of the progress ring consistent with FluentUI by @DemoJameson in #505
• Fix #482 and support to save and restore the open state by @DemoJameson in #501
• Theme change by @bdlukaa in #507

New Contributors

• @loic-sharma made their first contribution in #466
• @timurturbil made their first contribution in #470
• @DobreRadu made their first contribution in #465
• @YehudaKremer made their first contribution in #479
• @DemoJameson made their first contribution in #491

Full Changelog: v4.0.0-pre.3...v4.0.0-pre.4