App.xaml

<Application x:Class="MaterialDesignExtensionsDemo.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:md="http://materialdesigninxaml.net/winfx/xaml/themes"
             xmlns:local="clr-namespace:MaterialDesignExtensionsDemo"
             StartupUri="MainWindow.xaml">
    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <!-- material design styles -->
                <ResourceDictionary Source="pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/Generic.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesignTheme.Defaults.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MaterialDesignExtensions;component/Themes/Generic.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MaterialDesignExtensions;component/Themes/MaterialDesignLightTheme.xaml" />
                <!--<ResourceDictionary Source="pack://application:,,,/MaterialDesignExtensions;component/Themes/MaterialDesignDarkTheme.xaml" />-->

                <!-- primary colors -->
                <ResourceDictionary>
                    <ResourceDictionary.MergedDictionaries>
                        <ResourceDictionary Source="pack://application:,,,/MaterialDesignColors;component/Themes/MaterialDesignColor.Blue.xaml" />
                    </ResourceDictionary.MergedDictionaries>
                    <SolidColorBrush x:Key="PrimaryHueLightBrush" Color="{StaticResource Primary100}" />
                    <SolidColorBrush x:Key="PrimaryHueLightForegroundBrush" Color="{StaticResource Primary100Foreground}" />
                    <SolidColorBrush x:Key="PrimaryHueMidBrush" Color="{StaticResource Primary500}" />
                    <SolidColorBrush x:Key="PrimaryHueMidForegroundBrush" Color="{StaticResource Primary500Foreground}" />
                    <SolidColorBrush x:Key="PrimaryHueDarkBrush" Color="{StaticResource Primary600}" />
                    <SolidColorBrush x:Key="PrimaryHueDarkForegroundBrush" Color="{StaticResource Primary600Foreground}" />
                </ResourceDictionary>

                <!-- accent color -->
                <ResourceDictionary>
                    <ResourceDictionary.MergedDictionaries>
                        <ResourceDictionary Source="pack://application:,,,/MaterialDesignColors;component/Themes/MaterialDesignColor.Lime.xaml" />
                    </ResourceDictionary.MergedDictionaries>
                    <SolidColorBrush x:Key="SecondaryHueMidBrush" Color="{StaticResource Accent400}" />
                    <SolidColorBrush x:Key="SecondaryHueMidForegroundBrush" Color="{StaticResource Accent400Foreground}" />
                </ResourceDictionary>

                <!--<ResourceDictionary>
                    <SolidColorBrush x:Key="MaterialDesignBackground" Color="{Binding Color, Source={StaticResource MaterialDesignPaper}}" />
                </ResourceDictionary>-->

                <ResourceDictionary>
                    <Style TargetType="ScrollViewer" BasedOn="{StaticResource MaterialDesignScrollViewer}">
                        <Setter Property="md:ScrollViewerAssist.IgnorePadding" Value="False" />
                    </Style>
                </ResourceDictionary>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Application.Resources>
</Application>