What is primary color in ThemeData Flutter?

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primary as its default background color and the FloatingActionButton widget uses the color scheme’s ColorScheme. secondary for its default background. By default, the Text widget uses TextTheme. bodyText2, and the color of that TextStyle has been changed to purple.

Creating an app theme To share a Theme across an entire app, provide a ThemeData to the MaterialApp constructor . If no theme is provided, Flutter creates a default theme for you. MaterialApp( title: appName, theme: ThemeData( // Define the default brightness and colors.

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