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

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    
    <Style TargetType="{x:Type ToggleButton}" x:Key="AIStudio.DiagramApp.Styles.ToggleButton">
        <Setter Property="Foreground" Value="{DynamicResource BlackBrush}" />
        <Setter Property="SnapsToDevicePixels" Value="True" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type ToggleButton}">
                    <Grid x:Name="Grid" Margin="{TemplateBinding Padding}" Background="{TemplateBinding Background}">
                        <ContentPresenter VerticalAlignment="Center" HorizontalAlignment="Center"/>
                    </Grid>
                    <!--z触发器-->
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsMouseOver" Value="True">
                            <Setter TargetName="Grid" Property="Background" Value="{DynamicResource GrayBrush8}" />
                        </Trigger>
                        <Trigger Property="IsPressed" Value="True">
                            <Setter TargetName="Grid" Property="Background" Value="{DynamicResource Fluent.Ribbon.Brushes.HighlightBrush}" />
                        </Trigger>
                        <Trigger Property="IsChecked" Value="True">
                            <Setter Property="Foreground" Value="{DynamicResource Fluent.Ribbon.Brushes.AccentColorBrush80}" />
                        </Trigger>
                        <Trigger Property="IsEnabled" Value="false">
                            <Setter Property="Opacity" Value="0.5" TargetName="Grid"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

    <Style TargetType="{x:Type ToggleButton}" x:Key="AIStudio.DiagramApp.Styles.ToggleButton.Expander">
        <Setter Property="Foreground" Value="{DynamicResource BlackBrush}" />
        <Setter Property="SnapsToDevicePixels" Value="True" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type ToggleButton}">
                    <Grid x:Name="Grid" Margin="{TemplateBinding Padding}" Background="{TemplateBinding Background}">
                        <Path x:Name="Path" Fill="{TemplateBinding Foreground}" Stretch="Fill" Width="16" Height="16" Margin="10,3" Data="M18.41,7.41L17,6L11,12L17,18L18.41,16.59L13.83,12L18.41,7.41M12.41,7.41L11,6L5,12L11,18L12.41,16.59L7.83,12L12.41,7.41Z"/>
                    </Grid>
                    <!--z触发器-->
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsMouseOver" Value="True">
                            <Setter TargetName="Grid" Property="Background" Value="{DynamicResource GrayBrush8}" />
                        </Trigger>
                        <Trigger Property="IsPressed" Value="True">
                            <Setter TargetName="Grid" Property="Background" Value="{DynamicResource Fluent.Ribbon.Brushes.HighlightBrush}" />
                        </Trigger>
                        <Trigger Property="IsChecked" Value="True">
                            <Setter TargetName="Path" Property="Data" Value="M5.59,7.41L7,6L13,12L7,18L5.59,16.59L10.17,12L5.59,7.41M11.59,7.41L13,6L19,12L13,18L11.59,16.59L16.17,12L11.59,7.41Z" />
                        </Trigger>
                        <Trigger Property="IsEnabled" Value="false">
                            <Setter Property="Opacity" Value="0.5" TargetName="Grid"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>