<ResourceDictionary
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:ModernWpf.Controls">

    <Style TargetType="local:Page">
        <Setter Property="Foreground" Value="{DynamicResource SystemControlPageTextBaseHighBrush}" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="Page">
                    <Border Background="{TemplateBinding Background}">
                        <ContentPresenter Content="{TemplateBinding Content}"/>
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

</ResourceDictionary>