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As always, let me know if you have any comments, questions or corrections.

In Android Studio 4.1, the new project wizard, the theme is already created in the themes.xml file. Here you can see the background and color scheme for all three themes. Choose the right theme from the drop-down and click on Apply and then Ok. Under the Appearance & Behaviour -> Appearance, you will find Theme. A new Settings dialog will appear, like this. In our next post, we’ll look at how android:theme was backported in more detail. In section 8.1.Use a Base Theme you can see a better approach when having a less simple themes hierarchy. To change default themes go to File and click on Settings. For example, with data binding, since android:theme can’t be used or in the case of materialThemeOverlay, being able to add support for theme overlays in default style resources without breaking support for android:theme. There are a couple of cases where ContextThemeWrapper is exclusively helpful. You can customize the look of the material theme according to your brand identity with a color palette you control. Under the hood, MaterialAlertDialogBuilder is using ContextThemeWrapper in exactly the same way it resolves materialAlertDialogTheme, using the value as a theme overlay. setMessage ( "Log in using your fingerprint" ) //. getContext () val customView = LayoutInflater. Val builder = MaterialAlertDialogBuilder ( context ) val dialogThemeContext = builder.