8.3.0

August 15, 2025

This release of FlexColorScheme adds support for breaking changes in Flutter v3.35.0 and also requires at least this version.

Package

FIX

• Fix the in Flutter v3.35 broken API for BottomAppBarTheme, see issue #283
• Fix the Flutter v3.35 broken API for AppBarTheme, migrate to use new AppBarThemeData. For more information, see the discussion in #PR285
• Fix the Flutter v3.35 broken API for InputDecorationTheme, migrate to use new InputDecorationThemeData. For more information, see the discussion in #PR285
• Added a temporary workaround for the DropdownMenu's width issue #170970 so that the correct default width style for the DropdownMenu is retained. This issue affects Flutter 3.32.0 to at least Flutter 3.35.1. There is a fix PR in the master channel #PR169438, but it has not landed in Flutter 3.35.1. See also FCS issue report #286.

CHORE

• Updated tests to use the new BottomAppBarThemeData API.
• Updated tests to use the new AppBarThemeData API.
• Updated tests to use the new InputDecorationThemeData API.
• The test for FlexSubThemeData.sliderShowValueIndicator was changed from in Flutter 3.35 deprecated value ShowValueIndicator.always to ShowValueIndicator.onDrag, which is the new equivalent value in Flutter 3.35.
• Bump packages to latest versions.

FEATURE

• DropdownMenu: Added theming properties for the DropdownMenu's maximum size.
  • FlexSubThemesData got the new property dropdownMenuMaximumSize.
  • FlexSubThemes.dropdownMenuTheme got the new property maximumSize.
  • Both of type WidgetStateProperty<Size?>?
  • This was added to allow overriding the fix for the DropdownMenu width issue #170970.
  • The FlexSubThemes.dropdownMenuTheme property maximumSize temporarily default fallbacks to const WidgetStatePropertyAll<Size>(Size.infinite) if undefined. This results in the same default and correct style that Flutter had in 3.29.x and earlier versions. The default fallback will be removed in a future version of FlexColorScheme when the issue is fixed in Flutter SDK stable release.
  • This property is not available in the Themes Playground app, you can only override it via FlexColorScheme APIs.

Playground

CHORE

• Change deprecated Switch.activeColor to Switch.activeThumbColor in ColorNameValue.
• Use the new RadioGroup API in the Playground Theme Simulator in the Material-3 example app.
• Update known issues info expands in the Playground with up-to-date information about known issues and limitations in Flutter SDK theming.
• Bump packages to latest versions.

FEATURE

• The slider indicator value selection got the new selections ShowValueIndicator.onDrag and ShowValueIndicator.alwaysShow, which are new values in Flutter 3.35. The old value ShowValueIndicator.always is deprecated in Flutter 3.35 and will be removed in a future version of Flutter SDK and the Playground app.
• The Code generation and Export-Import to JSON features were separated into two different panels. This was done to improve the discoverability of the Export-import to JSON feature.