FISLib/FISSDK/FISSDKDemoV2/Resource/Style/Border.xaml

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

    <Style TargetType="{x:Type Border}">
        <Setter Property="BorderBrush" Value="{DynamicResource BorderBackground}" />
    </Style>
</ResourceDictionary>