From f8e1e33520ef62ad14c970f6e1cd9bcb7f8b7363 Mon Sep 17 00:00:00 2001
From: AC <56549504+ACbye@users.noreply.github.com>
Date: Tue, 9 Jun 2026 10:53:31 +0800
Subject: [PATCH] fix(controls): Fix LeftFluent nav item hover invisible in
 Light theme (#1729)

Changed NavigationViewItemBackgroundSelectedLeftFluent to reference SubtleFillColorSecondary instead of ControlFillColorDefault, and increased SubtleFillColorSecondary opacity from 3.5% to 7.84% for perceptual parity with Dark theme hover feedback.
---
 src/Wpf.Ui/Resources/Theme/Light.xaml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Wpf.Ui/Resources/Theme/Light.xaml b/src/Wpf.Ui/Resources/Theme/Light.xaml
index 1ebb82061..19fa4127a 100644
--- a/src/Wpf.Ui/Resources/Theme/Light.xaml
+++ b/src/Wpf.Ui/Resources/Theme/Light.xaml
@@ -50,7 +50,7 @@
     <Color x:Key="ControlSolidFillColorDefault">#FFFFFF</Color>
 
     <Color x:Key="SubtleFillColorTransparent">#00FFFFFF</Color>
-    <Color x:Key="SubtleFillColorSecondary">#09000000</Color>
+    <Color x:Key="SubtleFillColorSecondary">#14000000</Color>
     <Color x:Key="SubtleFillColorTertiary">#06000000</Color>
     <Color x:Key="SubtleFillColorDisabled">#00FFFFFF</Color>
 
@@ -543,7 +543,7 @@
     <SolidColorBrush x:Key="NavigationViewContentBackground" Color="{StaticResource LayerFillColorDefault}" />
     <SolidColorBrush x:Key="NavigationViewContentGridBorderBrush" Color="{StaticResource CardStrokeColorDefault}" />
 
-    <SolidColorBrush x:Key="NavigationViewItemBackgroundSelectedLeftFluent" Color="{StaticResource ControlFillColorDefault}" />
+    <SolidColorBrush x:Key="NavigationViewItemBackgroundSelectedLeftFluent" Color="{StaticResource SubtleFillColorSecondary}" />
     <SolidColorBrush x:Key="NavigationViewItemForegroundLeftFluent" Color="{StaticResource TextFillColorPrimary}" />
     <SolidColorBrush x:Key="NavigationViewItemForegroundPointerOverLeftFluent" Color="{StaticResource TextFillColorPrimary}" />