更新

WPFDark/Controls/BiaHsvBoxCursor.xaml

@@ -0,0 +1,7 @@
+<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+                    xmlns:colorPicker1="clr-namespace:WPFDark.Controls">
+    <Style TargetType="{x:Type colorPicker1:BiaHsvBoxCursor}">
+        <Setter Property="BorderColor" Value="{DynamicResource TextBoxBorderColorKey}" />
+    </Style>
+</ResourceDictionary>