<ResourceDictionary
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:core="clr-namespace:System;assembly=System.Runtime">

    <core:Double x:Key="DefaultAbstractUITitleFontSize">24</core:Double>

    <core:Double x:Key="DefaultAbstractUISubtitleFontSize">16</core:Double>
    <FontWeight x:Key="DefaultAbstractUISubtitleFontWeight">Light</FontWeight>
    <core:Double x:Key="DefaultAbstractUISubtitleOpacity">0.5</core:Double>

</ResourceDictionary>