From 2e53ede66b87baf725d60f3222a0edb6fcd22afe Mon Sep 17 00:00:00 2001
From: Meik <meik.drechsler@consulting4it.de>
Date: Thu, 5 Mar 2026 12:17:42 +0100
Subject: [PATCH] Derive header action button colors from dynamic header color

---
 MainWindow.xaml           |  4 ++--
 libs/configHelper.cs      | 12 ++++++++++++
 themes/ThemeDarkNav.xaml  |  1 +
 themes/ThemeLightNav.xaml |  1 +
 4 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/MainWindow.xaml b/MainWindow.xaml
index 3b8d38c..df1bf89 100644
--- a/MainWindow.xaml
+++ b/MainWindow.xaml
@@ -281,7 +281,7 @@
                                      Value="True">
                                 <Setter TargetName="HeaderButtonBorder"
                                         Property="Background"
-                                        Value="{DynamicResource inactiveButtonColor}" />
+                                        Value="{DynamicResource headerControlHoverBackgroundColor}" />
                             </Trigger>
                             <Trigger Property="IsPressed"
                                      Value="True">
@@ -300,7 +300,7 @@
             <Setter Property="BorderThickness"
                     Value="0" />
             <Setter Property="Background"
-                    Value="Transparent" />
+                    Value="{DynamicResource headerControlBackgroundColor}" />
             <Setter Property="Width"
                     Value="32" />
             <Setter Property="Height"
diff --git a/libs/configHelper.cs b/libs/configHelper.cs
index eb88f3a..4c8b1d9 100644
--- a/libs/configHelper.cs
+++ b/libs/configHelper.cs
@@ -253,6 +253,16 @@ namespace C4IT_CustomerPanel.libs
             Application.Current.Resources["navigationRailBorderColor"] = new SolidColorBrush(navBorder);
         }
 
+        private static void ApplyHeaderDerivedResources(Color headerColor)
+        {
+            bool isLightHeader = GetRelativeLuminance(headerColor) >= 0.55;
+            Color controlBase = BlendColor(headerColor, isLightHeader ? Colors.Black : Colors.White, isLightHeader ? 0.14 : 0.18);
+            Color controlHover = BlendColor(headerColor, isLightHeader ? Colors.Black : Colors.White, isLightHeader ? 0.22 : 0.26);
+
+            Application.Current.Resources["headerControlBackgroundColor"] = new SolidColorBrush(controlBase);
+            Application.Current.Resources["headerControlHoverBackgroundColor"] = new SolidColorBrush(controlHover);
+        }
+
         public SolidColorBrush GetHeaderColor()
         {
             return (SolidColorBrush)System.Windows.Application.Current.Resources["headerColor"];
@@ -995,6 +1005,7 @@ namespace C4IT_CustomerPanel.libs
 
                 System.Windows.Application.Current.Resources["headerColor"] = new SolidColorBrush(headerColor);
                 ApplyBackgroundDerivedResources(backgroundColor);
+                ApplyHeaderDerivedResources(headerColor);
             }
             catch
             {
@@ -1008,6 +1019,7 @@ namespace C4IT_CustomerPanel.libs
 
                 System.Windows.Application.Current.Resources["headerColor"] = new SolidColorBrush(fallbackHeader);
                 ApplyBackgroundDerivedResources(fallbackBackground);
+                ApplyHeaderDerivedResources(fallbackHeader);
             }
 
             try
diff --git a/themes/ThemeDarkNav.xaml b/themes/ThemeDarkNav.xaml
index 1c5085f..6cae965 100644
--- a/themes/ThemeDarkNav.xaml
+++ b/themes/ThemeDarkNav.xaml
@@ -26,6 +26,7 @@
     <SolidColorBrush x:Key="buttonTextColor" Color="#E2E8F0"></SolidColorBrush>
     <SolidColorBrush x:Key="headerColor" Color="#0B1220"></SolidColorBrush>
     <SolidColorBrush x:Key="headerControlBackgroundColor" Color="#233550"></SolidColorBrush>
+    <SolidColorBrush x:Key="headerControlHoverBackgroundColor" Color="#31496B"></SolidColorBrush>
     <SolidColorBrush x:Key="backgroundColor" Color="#0F172A"></SolidColorBrush>
     <SolidColorBrush x:Key="panelBackgroundColor" Color="#0F172A"></SolidColorBrush>
     <SolidColorBrush x:Key="panelBorderColor" Color="#2A3F5F"></SolidColorBrush>
diff --git a/themes/ThemeLightNav.xaml b/themes/ThemeLightNav.xaml
index e5bdae3..699d97f 100644
--- a/themes/ThemeLightNav.xaml
+++ b/themes/ThemeLightNav.xaml
@@ -26,6 +26,7 @@
     <SolidColorBrush x:Key="buttonTextColor" Color="#0F172A"></SolidColorBrush>
     <SolidColorBrush x:Key="headerColor" Color="#EAF1FA"></SolidColorBrush>
     <SolidColorBrush x:Key="headerControlBackgroundColor" Color="#C8D6EA"></SolidColorBrush>
+    <SolidColorBrush x:Key="headerControlHoverBackgroundColor" Color="#B2C5DE"></SolidColorBrush>
     <SolidColorBrush x:Key="backgroundColor" Color="#EDF3FB"></SolidColorBrush>
     <SolidColorBrush x:Key="panelBackgroundColor" Color="#EDF3FB"></SolidColorBrush>
     <SolidColorBrush x:Key="panelBorderColor" Color="#CAD9EC"></SolidColorBrush>