enhance: add HighlightTextBrush prop for HighlightTextBlock

src/Shared/HandyControl_Shared/Themes/Styles/Base/TextBlockBaseStyle.xaml

@@ -1,4 +1,5 @@
 <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+                    xmlns:hc="clr-namespace:HandyControl.Controls"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
 
     <Style x:Key="TextBlockBaseStyle" TargetType="TextBlock">
@@ -11,4 +12,9 @@
         <Setter Property="FontWeight" Value="Bold"/>
     </Style>
 
+    <Style x:Key="HighlightTextBlockBaseStyle" TargetType="hc:HighlightTextBlock">
+        <Setter Property="HighlightBrush" Value="{DynamicResource PrimaryBrush}"/>
+        <Setter Property="HighlightTextBrush" Value="{DynamicResource TextIconBrush}"/>
+    </Style>
+
 </ResourceDictionary>