Added Accent color settings

App/AccentColor.cs

@@ -0,0 +1,10 @@
+namespace ModernWpfPlayground
+{
+    public enum AccentColor
+    {
+        Green,
+        Yellow,
+        Blue,
+        Purple
+    }
+}

App/App.xaml.cs

@@ -1,4 +1,6 @@
 using System.Windows;
+using System.Windows.Media;
+using ModernWpf;
 using Prism.Ioc;
 
 namespace ModernWpfPlayground
@@ -8,6 +10,13 @@ namespace ModernWpfPlayground
     /// </summary>
     public partial class App
     {
+        /// <inheritdoc />
+        protected override void OnStartup(StartupEventArgs e)
+        {
+            ThemeManager.Current.AccentColor = Color.FromArgb(255, 0, 86, 76);
+            base.OnStartup(e);
+        }
+
         protected override void RegisterTypes(IContainerRegistry containerRegistry)
         {
             containerRegistry.Register<MainWindow>();

App/MainWindow.xaml

@@ -120,7 +120,7 @@
         <!--  Footer  -->
         <Grid
             Height="24"
-            Background="#00564C"
+            Background="{DynamicResource SystemControlBackgroundAccentBrush}"
             DockPanel.Dock="Bottom">
             <Grid.Resources>
                 <Style TargetType="TextBlock">
@@ -143,12 +143,12 @@
                 HorizontalAlignment="Right"
                 Text="BlaBlaBla" />
         </Grid>
-        <!--  Content  -->
         <Grid Row="1">
             <Grid.ColumnDefinitions>
                 <ColumnDefinition Width="40" />
                 <ColumnDefinition />
             </Grid.ColumnDefinitions>
+            <!--  Workspace  -->
             <Border
                 Grid.Column="0"
                 Panel.ZIndex="1"
@@ -188,15 +188,15 @@
                         Text="Dummy inactive" />
                 </ui:SimpleStackPanel>
             </Border>
+            <!--  Navigation  -->
             <ui:SplitView
                 Grid.Column="1"
                 BorderThickness="0"
                 DisplayMode="Inline"
                 IsPaneOpen="{Binding IsOn, ElementName=SplitViewSwitch}"
-                OpenPaneLength="250"
+                OpenPaneLength="200"
                 PanePlacement="Left">
                 <ui:SplitView.Pane>
-                    <ScrollViewer>
                     <Grid>
                         <Grid.RowDefinitions>
                             <RowDefinition Height="Auto" />
@@ -206,16 +206,18 @@
                         <TreeView Grid.Row="1">
                             <TreeViewItem Header="Root" IsExpanded="True">
                                 <TreeViewItem Header="Child1" />
-                                    <TreeViewItem Header="Child2" IsEnabled="False" />
+                                <TreeViewItem Header="Child2" />
                                 <TreeViewItem Header="Child3" />
                             </TreeViewItem>
                         </TreeView>
                     </Grid>
-                    </ScrollViewer>
-
                 </ui:SplitView.Pane>
+                <!--  Content  -->
                 <TabControl>
                     <TabItem Header="Bolt">
+                        <ScrollViewer ui:ScrollViewerHelper.AutoHideScrollBars="True">
+
+
                             <Grid>
                                 <Grid.ColumnDefinitions>
                                     <ColumnDefinition />
@@ -237,10 +239,14 @@
                                         Content="Save" />
                                 </ui:SimpleStackPanel>
                             </Grid>
+                        </ScrollViewer>
                     </TabItem>
                     <TabItem Header="General" IsSelected="True">
+                        <ScrollViewer ui:ScrollViewerHelper.AutoHideScrollBars="True">
+
                             <ui:SimpleStackPanel Margin="5" Spacing="10">
                                 <controls:PropertyPresenter Label="Theme Mode" Value="{Binding ThemeMode}" />
+                                <controls:PropertyPresenter Label="Accent color" Value="{Binding AccentColor}" />
                                 <controls:PropertyPresenter
                                     Command="{Binding ShowDialogCommand}"
                                     Label="Hello"
@@ -261,7 +267,7 @@
                                         <ColumnDefinition />
                                     </Grid.ColumnDefinitions>
                                     <ToggleButton
-                                    x:Name="Switch"
+                                        x:Name="TextBoxSwitch"
                                         Grid.Column="0"
                                         Width="145"
                                         Margin="0,0,5,0">
@@ -278,7 +284,7 @@
                                     </ToggleButton>
                                     <TextBox
                                         Grid.Column="1"
-                                    IsReadOnly="{Binding IsChecked, ElementName=Switch}"
+                                        IsReadOnly="{Binding IsChecked, ElementName=TextBoxSwitch}"
                                         Text="Eine einfache Textbox" />
                                 </Grid>
                                 <controls:PropertyPresenter Label="Hello" Value="{Binding BooleanValue}" />
@@ -300,6 +306,7 @@
                                     Visibility="{Binding VisibilityEnumTest}" />
                                 <controls:PropertyPresenter Label="Visi" Value="{Binding VisibilityEnumTest}" />
                             </ui:SimpleStackPanel>
+                        </ScrollViewer>
                     </TabItem>
                 </TabControl>
             </ui:SplitView>

App/MainWindowViewModel.cs

@@ -1,8 +1,10 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.IO;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Input;
+using System.Windows.Media;
 using Microsoft.Win32;
 using ModernWpf;
 using ModernWpfPlayground.MvvmStuff;
@@ -94,6 +96,24 @@ namespace ModernWpfPlayground
             set => SetProperty(value, SetTheme);
         }
 
+        public AccentColor AccentColor
+        {
+            get => GetProperty(AccentColor.Green);
+            set => SetProperty(value, SetAccentColor);
+        }
+
+        private static void SetAccentColor(AccentColor accentColor)
+        {
+            ThemeManager.Current.AccentColor = accentColor switch
+            {
+                AccentColor.Green => Color.FromArgb(255, 0, 86, 76),
+                AccentColor.Yellow => Color.FromArgb(255, 164, 144, 0),
+                AccentColor.Blue => Color.FromArgb(255, 0, 120, 215),
+                AccentColor.Purple => Color.FromArgb(255, 104, 33, 122),
+                _ => throw new ArgumentOutOfRangeException(nameof(accentColor), accentColor, null)
+            };
+        }
+
         public int WindowWidth
         {
             get => GetProperty(1200);

Controls/PropertyPresenter/PropertyPresenter.xaml

@@ -92,7 +92,7 @@
                 DisplayMemberPath="Key"
                 ItemsSource="{Binding Value, ElementName=LayoutRoot, Converter={StaticResource EnumToKeyValuePairConverter}}"
                 SelectedValue="{Binding Value, ElementName=LayoutRoot}"
-                SelectedValuePath="Value"
+                SelectedValuePath="Value" HorizontalAlignment="Stretch"
                 Validation.ErrorTemplate="{DynamicResource ValidationErrorTemplate}"
                 Validation.ValidationAdornerSiteFor="{Binding ElementName=LayoutRoot}">
                 <ComboBox.Style>