Deprecated API removed after v3.19

What changed?

In accordance with Flutter's Deprecation Policy, deprecated APIs that reached end of life after the 3.19 stable release have been removed.

Will this affect my application?

Who is affected: Any code still referencing the removed API will fail to compile after upgrading. Code that uses TextTheme, TextStyle, ThemeData and related APIs.
Practical impact: Compile errors until migrated; must be addressed before upgrading.
What action should I take?: Review the linked source, update affected code and run your test suite before upgrading.

APIs mentioned:TextTheme TextStyle ThemeData Color ThemeData.colorScheme BottomAppBarTheme ColorScheme CupertinoContextMenu.previewBuilder CupertinoContextMenu CupertinoContextMenu.animationOpensAt Scrollbar.showTrackOnHover Scrollbar

How do I migrate safely?

Before and after (from the official guide)

dart+39−41

Before

1		// TextTheme
2		// Base constructor
3		TextTheme(
4	−	headline1: headline1Style,
5	−	headline2: headline2Style,
6	−	headline3: headline3Style,
7	−	headline4: headline4Style,
8	−	headline5: headline5Style,
9	−	headline6: headline6Style,
10	−	subtitle1: subtitle1Style,
11	−	subtitle2: subtitle2Style,
12	−	bodyText1: bodyText1Style,
13	−	bodyText2: bodyText2Style,
14	−	caption: captionStyle,
15	−	button: buttonStyle,
16	−	overline: overlineStyle,
17		);
18
19	−	// copyWith
20		TextTheme.copyWith(
21	−	headline1: headline1Style,
22	−	headline2: headline2Style,
23	−	headline3: headline3Style,
24	−	headline4: headline4Style,
25	−	headline5: headline5Style,
26	−	headline6: headline6Style,
27	−	subtitle1: subtitle1Style,
28	−	subtitle2: subtitle2Style,
29	−	bodyText1: bodyText1Style,
30	−	bodyText2: bodyText2Style,
31	−	caption: captionStyle,
32	−	button: buttonStyle,
33	−	overline: overlineStyle,
34		);
35
36	−	// Getters
37		TextStyle style;
38	−	style = textTheme.headline1,
39	−	style = textTheme.headline2,
40	−	style = textTheme.headline3,
41	−	style = textTheme.headline4,
42	−	style = textTheme.headline5,
43	−	style = textTheme.headline6,
44	−	style = textTheme.subtitle1,
45	−	style = textTheme.subtitle2,
46	−	style = textTheme.bodyText1,
47	−	style = textTheme.bodyText2,
48	−	style = textTheme.caption,
49	−	style = textTheme.button,
50	−	style = textTheme.overline,

After

1		// TextTheme
2		// Base constructor
3		TextTheme(
4	+	displayLarge: headline1Style,
5	+	displayMedium: headline2Style,
6	+	displaySmall: headline3Style,
7	+	headlineMedium: headline4Style,
8	+	headlineSmall: headline5Style,
9	+	titleLarge: headline6Style,
10	+	titleMedium: subtitle1Style,
11	+	titleSmall: subtitle2Style,
12	+	bodyLarge: bodyText1Style,
13	+	bodyMedium: bodyText2Style,
14	+	bodySmall: captionStyle,
15	+	labelLarge: buttonStyle,
16	+	labelSmall: overlineStyle,
17		);
18

19		TextTheme.copyWith(
20	+	displayLarge: headline1Style,
21	+	displayMedium: headline2Style,
22	+	displaySmall: headline3Style,
23	+	headlineMedium: headline4Style,
24	+	headlineSmall: headline5Style,
25	+	titleLarge: headline6Style,
26	+	titleMedium: subtitle1Style,
27	+	titleSmall: subtitle2Style,
28	+	bodyLarge: bodyText1Style,
29	+	bodyMedium: bodyText2Style,
30	+	bodySmall: captionStyle,
31	+	labelLarge: buttonStyle,
32	+	labelSmall: overlineStyle,
33		);
34

35		TextStyle style;
36	+	style = textTheme.displayLarge;
37	+	style = textTheme.displayMedium;
38	+	style = textTheme.displaySmall;
39	+	style = textTheme.headlineMedium;
40	+	style = textTheme.headlineSmall;
41	+	style = textTheme.titleLarge;
42	+	style = textTheme.titleMedium;
43	+	style = textTheme.titleSmall;
44	+	style = textTheme.bodyLarge;
45	+	style = textTheme.bodyMedium;
46	+	style = textTheme.bodySmall;
47	+	style = textTheme.labelLarge;
48	+	style = textTheme.labelSmall;

Raw before / after

// TextTheme
// Base constructor
TextTheme(
  headline1: headline1Style,
  headline2: headline2Style,
  headline3: headline3Style,
  headline4: headline4Style,
  headline5: headline5Style,
  headline6: headline6Style,
  subtitle1: subtitle1Style,
  subtitle2: subtitle2Style,
  bodyText1: bodyText1Style,
  bodyText2: bodyText2Style,
  caption: captionStyle,
  button: buttonStyle,
  overline: overlineStyle,
);

// copyWith
TextTheme.copyWith(
  headline1: headline1Style,
  headline2: headline2Style,
  headline3: headline3Style,
  headline4: headline4Style,
  headline5: headline5Style,
  headline6: headline6Style,
  subtitle1: subtitle1Style,
  subtitle2: subtitle2Style,
  bodyText1: bodyText1Style,
  bodyText2: bodyText2Style,
  caption: captionStyle,
  button: buttonStyle,
  overline: overlineStyle,
);

// Getters
TextStyle style;
style = textTheme.headline1,
style = textTheme.headline2,
style = textTheme.headline3,
style = textTheme.headline4,
style = textTheme.headline5,
style = textTheme.headline6,
style = textTheme.subtitle1,
style = textTheme.subtitle2,
style = textTheme.bodyText1,
style = textTheme.bodyText2,
style = textTheme.caption,
style = textTheme.button,
style = textTheme.overline,

// TextTheme
// Base constructor
TextTheme(
  displayLarge: headline1Style,
  displayMedium: headline2Style,
  displaySmall: headline3Style,
  headlineMedium: headline4Style,
  headlineSmall: headline5Style,
  titleLarge: headline6Style,
  titleMedium: subtitle1Style,
  titleSmall: subtitle2Style,
  bodyLarge: bodyText1Style,
  bodyMedium: bodyText2Style,
  bodySmall: captionStyle,
  labelLarge: buttonStyle,
  labelSmall: overlineStyle,
);

TextTheme.copyWith(
  displayLarge: headline1Style,
  displayMedium: headline2Style,
  displaySmall: headline3Style,
  headlineMedium: headline4Style,
  headlineSmall: headline5Style,
  titleLarge: headline6Style,
  titleMedium: subtitle1Style,
  titleSmall: subtitle2Style,
  bodyLarge: bodyText1Style,
  bodyMedium: bodyText2Style,
  bodySmall: captionStyle,
  labelLarge: buttonStyle,
  labelSmall: overlineStyle,
);

TextStyle style;
style = textTheme.displayLarge;
style = textTheme.displayMedium;
style = textTheme.displaySmall;
style = textTheme.headlineMedium;
style = textTheme.headlineSmall;
style = textTheme.titleLarge;
style = textTheme.titleMedium;
style = textTheme.titleSmall;
style = textTheme.bodyLarge;
style = textTheme.bodyMedium;
style = textTheme.bodySmall;
style = textTheme.labelLarge;
style = textTheme.labelSmall;

Migration assistantAI-generated · grounded in cited sources

AI explanations are not configured

Set AI_PROVIDER (for example to openai-compatible with a local Ollama or LM Studio endpoint) to enable grounded explanations. Everything else on this page works without an AI provider.

Evidence & verification

Official migration guide·Verified classification (90%)

Listed in the official breaking-changes index; title states removal.

An official announcement or migration guide documents an intended behaviour or API change. A verified source change (git diff) shows code changed but does not by itself prove a public API is breaking. AI interpretations are labelled and never used to classify a change.

Validation warnings

api-symbols: {"reason":"no referenced symbol found in the current API index","unresolved":["TextTheme","TextStyle","ThemeData","Color","ThemeData.colorScheme","BottomAppBarTheme","ColorScheme","CupertinoContextMenu.previewBuilder","CupertinoContextMenu","CupertinoContextMenu.animationOpensAt","Scrollbar.showTrackOnHover","Scrollbar","ScrollbarThemeData.showTrackOnHover","ScrollbarThemeData.trackVisibility","ScrollbarThemeData","MaterialState","MaterialStateProperty","KeepAliveHandle.release","KeepAliveHandle","InteractiveViewer.alignPanAxis","InteractiveViewer","PanAxis","MediaQuery.boldTextOverride","MediaQuery","AnimatedList","AnimatedGrid","AnimatedListItemBuilder","AnimatedListRemovedItemBuilder","AnimatedItemBuilder","AnimatedRemovedItemBuilder","FlutterDriver.enableAccessibility","FlutterDriver","TimelineSummary.writeSummaryToFile","TimelineSummary","ToolbarOptions","TextSelectionController","SelectableRegionState"]}

Official migration guide

Source commit: b3045439b7c0
Source last updated: Oct 21, 2026
Last synchronized: Oct 21, 2026
Publication status: published

Publication history

Oct 21, 2026, 8:31 PM: new → published (ingestion) — Backed by an official breaking-change/migration guide.

AI explanationAI-generated · grounded in cited sources

AI explanations are not configured

Set AI_PROVIDER (for example to openai-compatible with a local Ollama or LM Studio endpoint) to enable grounded explanations. Everything else on this page works without an AI provider.

Was this useful?

BreakingHigh impactnot yet in stable migration guide