From d4777636fc6ef096350ef1083ad2bc2734b5282d Mon Sep 17 00:00:00 2001
From: Meik <meik.drechsler@consulting4it.de>
Date: Thu, 5 Mar 2026 12:05:51 +0100
Subject: [PATCH] Derive nav/content shades from background and make config
 dialog frameless

---
 forms/configInfo.xaml    | 65 ++++++++++++++++++++++++++++++++++++++--
 forms/configInfo.xaml.cs | 17 +++++++++++
 libs/configHelper.cs     | 54 ++++++++++++++++++++++++++++++---
 3 files changed, 129 insertions(+), 7 deletions(-)

diff --git a/forms/configInfo.xaml b/forms/configInfo.xaml
index 35f8b05..701fd95 100644
--- a/forms/configInfo.xaml
+++ b/forms/configInfo.xaml
@@ -12,9 +12,12 @@
         MinHeight="540"
         MinWidth="840"
         ResizeMode="NoResize"
+        WindowStyle="None"
+        AllowsTransparency="True"
         UseLayoutRounding="True"
         SnapsToDevicePixels="True"
-        Background="{DynamicResource backgroundColor}"
+        KeyDown="ConfigInfo_KeyDown"
+        Background="Transparent"
         Icon="/Customer Panel;component/Resources/icons/logo_CustomerPanel.ico">
     <Window.Resources>
         <Style x:Key="ConfigLabelStyle"
@@ -103,6 +106,54 @@
                 </Setter.Value>
             </Setter>
         </Style>
+        <Style x:Key="ConfigHeaderButtonStyle"
+               TargetType="Button">
+            <Setter Property="Foreground"
+                    Value="{DynamicResource navForeground}" />
+            <Setter Property="Background"
+                    Value="Transparent" />
+            <Setter Property="BorderBrush"
+                    Value="{DynamicResource inputBorderColor}" />
+            <Setter Property="BorderThickness"
+                    Value="1" />
+            <Setter Property="Width"
+                    Value="30" />
+            <Setter Property="Height"
+                    Value="30" />
+            <Setter Property="Cursor"
+                    Value="Hand" />
+            <Setter Property="Template">
+                <Setter.Value>
+                    <ControlTemplate TargetType="Button">
+                        <Border x:Name="ControlBorder"
+                                Background="{TemplateBinding Background}"
+                                BorderBrush="{TemplateBinding BorderBrush}"
+                                BorderThickness="{TemplateBinding BorderThickness}"
+                                CornerRadius="9">
+                            <ContentPresenter HorizontalAlignment="Center"
+                                              VerticalAlignment="Center" />
+                        </Border>
+                        <ControlTemplate.Triggers>
+                            <Trigger Property="IsMouseOver"
+                                     Value="True">
+                                <Setter TargetName="ControlBorder"
+                                        Property="Background"
+                                        Value="{DynamicResource inactiveButtonColor}" />
+                                <Setter TargetName="ControlBorder"
+                                        Property="BorderBrush"
+                                        Value="{DynamicResource itemHoverBorderColor}" />
+                            </Trigger>
+                            <Trigger Property="IsPressed"
+                                     Value="True">
+                                <Setter TargetName="ControlBorder"
+                                        Property="Opacity"
+                                        Value="0.92" />
+                            </Trigger>
+                        </ControlTemplate.Triggers>
+                    </ControlTemplate>
+                </Setter.Value>
+            </Setter>
+        </Style>
     </Window.Resources>
 
     <Grid Margin="14">
@@ -119,10 +170,11 @@
                     <RowDefinition Height="Auto" />
                 </Grid.RowDefinitions>
 
-                <Grid>
+                <Grid MouseLeftButtonDown="Header_MouseLeftButtonDown">
                     <Grid.ColumnDefinitions>
                         <ColumnDefinition Width="*" />
                         <ColumnDefinition Width="Auto" />
+                        <ColumnDefinition Width="Auto" />
                     </Grid.ColumnDefinitions>
                     <StackPanel Orientation="Vertical"
                                 VerticalAlignment="Center">
@@ -138,10 +190,17 @@
                     <Image Grid.Column="1"
                            Width="150"
                            Height="40"
-                           Margin="16,0,0,0"
+                           Margin="16,0,10,0"
                            VerticalAlignment="Center"
                            Stretch="Uniform"
                            Source="/Customer Panel;component/Resources/consulting4it-header1.png" />
+                    <Button Grid.Column="2"
+                            Content="X"
+                            FontSize="14"
+                            FontWeight="Bold"
+                            Style="{StaticResource ConfigHeaderButtonStyle}"
+                            Click="OnCloseButtonClick"
+                            ToolTip="{x:Static resx:Resources.close}" />
                 </Grid>
 
                 <Grid Grid.Row="2"
diff --git a/forms/configInfo.xaml.cs b/forms/configInfo.xaml.cs
index d84d8f2..cd22e5c 100644
--- a/forms/configInfo.xaml.cs
+++ b/forms/configInfo.xaml.cs
@@ -53,6 +53,23 @@ namespace C4IT_CustomerPanel.forms
             MessageBox.Show(cc,"Additional Copyrights");
         }
 
+        private void Header_MouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
+        {
+            if (e.LeftButton == System.Windows.Input.MouseButtonState.Pressed)
+                DragMove();
+        }
+
+        private void OnCloseButtonClick(object sender, RoutedEventArgs e)
+        {
+            Close();
+        }
+
+        private void ConfigInfo_KeyDown(object sender, System.Windows.Input.KeyEventArgs e)
+        {
+            if (e.Key == System.Windows.Input.Key.Escape)
+                Close();
+        }
+
         private void Button_PreviewMouseDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
         {
             
diff --git a/libs/configHelper.cs b/libs/configHelper.cs
index fe0469d..fb94d3f 100644
--- a/libs/configHelper.cs
+++ b/libs/configHelper.cs
@@ -221,6 +221,37 @@ namespace C4IT_CustomerPanel.libs
         {
             return (SolidColorBrush)System.Windows.Application.Current.Resources["backgroundColor"];
         }
+
+        private static Color BlendColor(Color source, Color target, double amount)
+        {
+            amount = Math.Max(0.0, Math.Min(1.0, amount));
+            return Color.FromArgb(
+                source.A,
+                (byte)Math.Round((source.R * (1.0 - amount)) + (target.R * amount)),
+                (byte)Math.Round((source.G * (1.0 - amount)) + (target.G * amount)),
+                (byte)Math.Round((source.B * (1.0 - amount)) + (target.B * amount)));
+        }
+
+        private static double GetRelativeLuminance(Color color)
+        {
+            return ((0.2126 * color.R) + (0.7152 * color.G) + (0.0722 * color.B)) / 255.0;
+        }
+
+        private static void ApplyBackgroundDerivedResources(Color baseColor)
+        {
+            bool isLightBackground = GetRelativeLuminance(baseColor) >= 0.55;
+            Color panelColor = BlendColor(baseColor, Colors.White, isLightBackground ? 0.06 : 0.08);
+            Color navColor = BlendColor(baseColor, Colors.Black, isLightBackground ? 0.06 : 0.08);
+            Color panelBorder = BlendColor(baseColor, isLightBackground ? Colors.Black : Colors.White, isLightBackground ? 0.16 : 0.22);
+            Color navBorder = BlendColor(baseColor, isLightBackground ? Colors.Black : Colors.White, isLightBackground ? 0.20 : 0.28);
+
+            Application.Current.Resources["backgroundColor"] = new SolidColorBrush(baseColor);
+            Application.Current.Resources["panelBackgroundColor"] = new SolidColorBrush(panelColor);
+            Application.Current.Resources["navigationRailColor"] = new SolidColorBrush(navColor);
+            Application.Current.Resources["panelBorderColor"] = new SolidColorBrush(panelBorder);
+            Application.Current.Resources["navigationRailBorderColor"] = new SolidColorBrush(navBorder);
+        }
+
         public SolidColorBrush GetHeaderColor()
         {
             return (SolidColorBrush)System.Windows.Application.Current.Resources["headerColor"];
@@ -958,10 +989,15 @@ namespace C4IT_CustomerPanel.libs
         {
             try
             {
-                System.Windows.Application.Current.Resources["activeButtonColor"] = new SolidColorBrush((Color)ConverterHelper.ColorConvertFromString(cpConfig._uiColors["activeButtonColor"]));
-                System.Windows.Application.Current.Resources["inactiveButtonColor"] = new SolidColorBrush((Color)ConverterHelper.ColorConvertFromString(cpConfig._uiColors["inactiveButtonColor"]));
-                System.Windows.Application.Current.Resources["backgroundColor"] = new SolidColorBrush((Color)ConverterHelper.ColorConvertFromString(cpConfig._uiColors["backgroundColor"]));
-                System.Windows.Application.Current.Resources["headerColor"] = new SolidColorBrush((Color)ConverterHelper.ColorConvertFromString(cpConfig._uiColors["headerColor"]));
+                Color activeColor = (Color)ConverterHelper.ColorConvertFromString(cpConfig._uiColors["activeButtonColor"]);
+                Color inactiveColor = (Color)ConverterHelper.ColorConvertFromString(cpConfig._uiColors["inactiveButtonColor"]);
+                Color backgroundColor = (Color)ConverterHelper.ColorConvertFromString(cpConfig._uiColors["backgroundColor"]);
+                Color headerColor = (Color)ConverterHelper.ColorConvertFromString(cpConfig._uiColors["headerColor"]);
+
+                System.Windows.Application.Current.Resources["activeButtonColor"] = new SolidColorBrush(activeColor);
+                System.Windows.Application.Current.Resources["inactiveButtonColor"] = new SolidColorBrush(inactiveColor);
+                System.Windows.Application.Current.Resources["headerColor"] = new SolidColorBrush(headerColor);
+                ApplyBackgroundDerivedResources(backgroundColor);
             }
             catch
             {
@@ -969,6 +1005,16 @@ namespace C4IT_CustomerPanel.libs
                 cpConfig._uiColors["backgroundColor"] = Properties.Resources.backgroundColor;
                 cpConfig._uiColors["headerColor"] = Properties.Resources.headerColor;
                 cpConfig._uiColors["activeButtonColor"] = Properties.Resources.activeButtonColor;
+
+                Color fallbackActive = (Color)ConverterHelper.ColorConvertFromString(cpConfig._uiColors["activeButtonColor"]);
+                Color fallbackInactive = (Color)ConverterHelper.ColorConvertFromString(cpConfig._uiColors["inactiveButtonColor"]);
+                Color fallbackBackground = (Color)ConverterHelper.ColorConvertFromString(cpConfig._uiColors["backgroundColor"]);
+                Color fallbackHeader = (Color)ConverterHelper.ColorConvertFromString(cpConfig._uiColors["headerColor"]);
+
+                System.Windows.Application.Current.Resources["activeButtonColor"] = new SolidColorBrush(fallbackActive);
+                System.Windows.Application.Current.Resources["inactiveButtonColor"] = new SolidColorBrush(fallbackInactive);
+                System.Windows.Application.Current.Resources["headerColor"] = new SolidColorBrush(fallbackHeader);
+                ApplyBackgroundDerivedResources(fallbackBackground);
             }
 
             try