WPF XAML 触发器

WPF XAML显示了一个Bool选择器button,我想在触发那里改一下在控件IsEnabled属性为false时，控件背景显示的是一个置灰效果，IsEnabled属性为true时，触发效果保持原有样式

<Style x:Key="ToggleButton.Base.Style" TargetType="views:VisionToggleButton">
        <Setter Property="Foreground" Value="{StaticResource ToggleButtonFontColor}" />
        <Setter Property="VerticalAlignment" Value="Center" />
        <Setter Property="FontSize" Value="12" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="views:VisionToggleButton">
                    <Border
                        x:Name="PART_Border"
                        BorderBrush="{StaticResource BorderBrush}"
                        BorderThickness="1"
                        Background="{StaticResource ElementGroupBackground}"
                        CornerRadius="12">
                        <Grid>
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="*" />
                                <ColumnDefinition Width="*" />
                            </Grid.ColumnDefinitions>
                            <Border
                                x:Name="RightBorder"
                                Grid.Column="0"
                                Grid.ColumnSpan="2"
                                Width="{TemplateBinding Width,
                                                        Converter={converters:ToggleButtonWidthConverter}}"
                                Height="{Binding ElementName=PART_Border, Path=Height}"
                                HorizontalAlignment="Right"
                                Background="{StaticResource ButtonFontColor}"
                                CornerRadius="{Binding ElementName=PART_Border, Path=CornerRadius}"
                                Focusable="False" />
                            <Border
                                x:Name="LeftBorder"
                                Grid.Column="0"
                                Grid.ColumnSpan="2"
                                Width="{TemplateBinding Width,
                                                        Converter={converters:ToggleButtonWidthConverter}}"
                                Height="{Binding ElementName=PART_Border, Path=Height}"
                                HorizontalAlignment="Left"
                                Background="{StaticResource ButtonFontColor}"
                                CornerRadius="{Binding ElementName=PART_Border, Path=CornerRadius}"
                                Focusable="False"
                                Visibility="Collapsed" />
                            <TextBlock
                                x:Name="Ok"
                                Grid.Column="0"
                                Height="{Binding ElementName=PART_Border, Path=Height}"
                                Margin="0"
                                HorizontalAlignment="Center"
                                VerticalAlignment="Center"
                                Text="{TemplateBinding IsCheckedString}" />
                            <TextBlock
                                x:Name="No"
                                Grid.Column="1"
                                Height="{Binding ElementName=PART_Border, Path=Height}"
                                Margin="0"
                                HorizontalAlignment="Center"
                                VerticalAlignment="Center"
                                Text="{TemplateBinding IsNotCheckedString}" />

                        </Grid>
                    </Border>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsChecked" Value="True">
                            <Setter TargetName="Ok" Property="Foreground" Value="{StaticResource ButtonBackground}" />
                            <Setter TargetName="LeftBorder" Property="Visibility" Value="Visible" />
                            <Setter TargetName="RightBorder" Property="Visibility" Value="Collapsed" />
                        </Trigger>
                        <Trigger Property="IsChecked" Value="False">
                            <Setter TargetName="No" Property="Foreground" Value="{StaticResource ButtonBackground}" />
                            <Setter TargetName="LeftBorder" Property="Visibility" Value="Collapsed" />
                            <Setter TargetName="RightBorder" Property="Visibility" Value="Visible" />
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
        
    </Style>

已解决，加一层带有透明度的border即可。

<Style x:Key="ToggleButton.Base.Style" TargetType="views:VisionToggleButton">
        <Setter Property="Foreground" Value="{StaticResource ToggleButtonFontColor}" />
        <Setter Property="VerticalAlignment" Value="Center" />
        <Setter Property="FontSize" Value="12" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="views:VisionToggleButton">
                    <Border
                        x:Name="PART_Border"
                        BorderBrush="{StaticResource BorderBrush}"
                        BorderThickness="1"
                        Background="{StaticResource ElementGroupBackground}"
                        CornerRadius="12">
                        <Grid>
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="*" />
                                <ColumnDefinition Width="*" />
                            </Grid.ColumnDefinitions>
                            <Border
                                x:Name="RightBorder"
                                Grid.Column="0"
                                Grid.ColumnSpan="2"
                                Width="{TemplateBinding Width,
                                                        Converter={converters:ToggleButtonWidthConverter}}"
                                Height="{Binding ElementName=PART_Border, Path=Height}"
                                HorizontalAlignment="Right"
                                Background="{StaticResource ButtonFontColor}"
                                CornerRadius="{Binding ElementName=PART_Border, Path=CornerRadius}"
                                Focusable="False" />
                            <Border
                                x:Name="LeftBorder"
                                Grid.Column="0"
                                Grid.ColumnSpan="2"
                                Width="{TemplateBinding Width,
                                                        Converter={converters:ToggleButtonWidthConverter}}"
                                Height="{Binding ElementName=PART_Border, Path=Height}"
                                HorizontalAlignment="Left"
                                Background="{StaticResource ButtonFontColor}"
                                CornerRadius="{Binding ElementName=PART_Border, Path=CornerRadius}"
                                Focusable="False"
                                Visibility="Collapsed" />
                            <Border
                                x:Name="IsEnableBorder"
                                Grid.Column="0"
                                Grid.ColumnSpan="2"
                                Width="{TemplateBinding Width}"
                                Height="{Binding ElementName=PART_Border, Path=Height}"
                                HorizontalAlignment="Center"
                                Background="#7FFFFFFF"
                                CornerRadius="{Binding ElementName=PART_Border, Path=CornerRadius}"
                                Focusable="False" />
                            <TextBlock
                                x:Name="Ok"
                                Grid.Column="0"
                                Height="{Binding ElementName=PART_Border, Path=Height}"
                                Margin="0"
                                HorizontalAlignment="Center"
                                VerticalAlignment="Center"
                                Text="{TemplateBinding IsCheckedString}" />
                            <TextBlock
                                x:Name="No"
                                Grid.Column="1"
                                Height="{Binding ElementName=PART_Border, Path=Height}"
                                Margin="0"
                                HorizontalAlignment="Center"
                                VerticalAlignment="Center"
                                Text="{TemplateBinding IsNotCheckedString}" />

                        </Grid>
                    </Border>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsEnabled" Value="True">
                            <Setter TargetName="Ok" Property="Foreground" Value="{StaticResource ButtonBackground}" />
                            <Setter TargetName="IsEnableBorder" Property="Visibility" Value="Collapsed" />
                        </Trigger>
                        <Trigger Property="IsEnabled" Value="False">
                            <Setter TargetName="Ok" Property="Foreground" Value="{StaticResource ButtonBackground}" />
                            <Setter TargetName="IsEnableBorder" Property="Visibility" Value="Visible" />
                        </Trigger>
                        <Trigger Property="IsChecked" Value="True">
                            <Setter TargetName="Ok" Property="Foreground" Value="{StaticResource ButtonBackground}" />
                            <Setter TargetName="LeftBorder" Property="Visibility" Value="Visible" />
                            <Setter TargetName="RightBorder" Property="Visibility" Value="Collapsed" />
                        </Trigger>
                        <Trigger Property="IsChecked" Value="False">
                            <Setter TargetName="No" Property="Foreground" Value="{StaticResource ButtonBackground}" />
                            <Setter TargetName="LeftBorder" Property="Visibility" Value="Collapsed" />
                            <Setter TargetName="RightBorder" Property="Visibility" Value="Visible" />
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
        
    </Style>