aistudio-wpf-diagram/AIStudio.Wpf.DiagramApp/Styles/ListBox.xaml

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    
    <Style x:Key="AIStudio.DiagramApp.Styles.ListBoxItem" TargetType="{x:Type ListBoxItem}">
        <Setter Property="Foreground" Value="{DynamicResource Fluent.Ribbon.Brushes.LabelTextBrush}" />
        <Setter Property="HorizontalContentAlignment" Value="Stretch" />
        <Setter Property="VerticalContentAlignment" Value="Center" />
        <Setter Property="MinHeight" Value="25" />
        <Setter Property="Margin" Value="0" />
        <Setter Property="Background" Value="Transparent" />
        <Setter Property="Padding" Value="0,0,0,10" />
        <Setter Property="SnapsToDevicePixels" Value="True" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type ListBoxItem}">
                    <Border x:Name="Border" Margin="{Binding RelativeSource={RelativeSource TemplatedParent},Path=Padding}" Background="{TemplateBinding Background}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" >
                        <ContentPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
                                          HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />
                    </Border>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsSelected" Value="True">
                            <Setter TargetName="Border" Property="Background" Value="{DynamicResource Fluent.Ribbon.Brushes.AccentBaseColorBrush}" />
                            <Setter Property="Foreground" Value="{DynamicResource MahApps.Brushes.Highlight}" />
                        </Trigger>
                        <Trigger Property="IsMouseOver" Value="True">
                            <Setter TargetName="Border" Property="Background" Value="{DynamicResource Fluent.Ribbon.Brushes.BackstageTabItem.MouseOver.Background}" />
                            <!--<Setter Property="Foreground" Value="{StaticResource ItemMouseOverForeground}" />-->
                        </Trigger>
                        <Trigger Property="IsEnabled" Value="False">
                            <Setter TargetName="Border" Property="Opacity" Value="0.8" />
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
    
    <Style x:Key="AIStudio.DiagramApp.Styles.ListBox" TargetType="{x:Type ListBox}">
        <Setter Property="BorderBrush" Value="{DynamicResource Fluent.Ribbon.Brushes.Control.BorderBrush}" />
        <Setter Property="Background" Value="{DynamicResource WhiteBrush}" />
        <Setter Property="BorderThickness" Value="1" />
        <Setter Property="ItemContainerStyle" Value="{StaticResource AIStudio.DiagramApp.Styles.ListBoxItem}"></Setter>
        <Setter Property="SnapsToDevicePixels" Value="True" />
        <Setter Property="VirtualizingStackPanel.IsVirtualizing" Value="False"></Setter>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type ListBox}">
                    <Border Name="Border" Background="{TemplateBinding Background}"
                            BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}">
                        <ScrollViewer>
                            <ItemsPresenter />
                        </ScrollViewer>
                    </Border>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsEnabled" Value="False">
                            <Setter TargetName="Border" Property="Opacity" Value="0.8" />
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>