Silverlight toolkit theme not applied to label

Do I have to do something special to the Label control from the Silverlight toolkit to get the current themed applied?

When looking 开发者_开发知识库at the Theme Browser on the demo page it appears as though labels should be turning white in the expression dark theme, but it's staying black for me.

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it works fine for me. You might have an implicit or explicit Label style that overwrites it.

Edit:

<Grid x:Name="LayoutRoot">
    <toolkit:ExpressionDarkTheme>
        <Grid>
            <sdk:Label Content="label" HorizontalAlignment="Center" VerticalAlignment="Center"/>
        </Grid>
    </toolkit:ExpressionDarkTheme>
</Grid>