OverlayStyle.xaml

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

    <SolidColorBrush x:Key="OverlayBackgroundColor" Color="Black"/>
    <SolidColorBrush x:Key="OverlayForegroundColor" Color="White"/>
    <FontFamily x:Key="OverlayFontFamily">./resources/#Volter (Goldfish)</FontFamily>

    <Style x:Key="TitleStyle" TargetType="{x:Type TextBlock}">
        <Setter Property="Background" Value="{StaticResource OverlayBackgroundColor}"/>
        <Setter Property="Foreground" Value="{StaticResource OverlayForegroundColor}"/>
        <Setter Property="FontFamily" Value="{StaticResource OverlayFontFamily}"/>
        <Setter Property="FontSize" Value="30px"/>
        <Setter Property="FontWeight" Value="Bold"/>
        <Setter Property="TextWrapping" Value="WrapWithOverflow"/>
        <Setter Property="TextAlignment" Value="Center"/>
    </Style>

    <Style x:Key="ActionLogStyle" TargetType="{x:Type TextBox}">
        <Setter Property="Background" Value="{StaticResource OverlayBackgroundColor}"/>
        <Setter Property="Foreground" Value="{StaticResource OverlayForegroundColor}"/>
        <Setter Property="FontFamily" Value="{StaticResource OverlayFontFamily}"/>
        <Setter Property="FontSize" Value="20px"/>
    </Style>
</ResourceDictionary>