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Set dark mode

This personalization setting for end users allows them to express preference whether to see applications which support the setting in a dark or light mode.

Screen shot of Windows Settings, Personalization area, with a customer selecting an orange accent color

Many Microsoft first party applications apply the setting and it is easy for you to support the functionality in your UWP applications as well.

Groove Music application shown in light modeGroove Music application shown in dark mode

You can customize the default Windows theme via Unattend.xml. The Unattend component includes a setting UWPAppsUseLIghtTheme that configures dark mode as the default for apps that support it.

<settings pass="oobeSystem">
        <Themes>
            <ThemeName>MyOLEDTheme</ThemeName>
            <DefaultThemesOff>false</DefaultThemesOff>
            <DesktopBackground>c:\windows\OLEDFriendlyImage.jpg</DesktopBackground>
            <WindowColor>Lime</WindowColor>
            <UWPAppsUseLightTheme>false</UWPAppsUseLightTheme>
        </Themes>
    </settings>

To learn more about customizing Windows themes, see Themes in the Unattended Windows Setup Reference.