SHJX_GM/SHJX.Service.Library/CustomControl/GroupBox/Themes/Generic.xaml

<ResourceDictionary
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:ZUI="clr-namespace:CustomUI">
    <Style TargetType="{x:Type ZUI:ZGroupBox}">
        <Setter Property="Foreground" Value="Black" />
        <Setter Property="BorderBrush" Value="#D7DDE4" />
        <Setter Property="BorderThickness" Value="1" />
        <Setter Property="HeaderBackground" Value="#F5F7F9" />
        <Setter Property="HeaderPadding" Value="5" />
        <Setter Property="CornerRadius" Value="0" />
        <Setter Property="HorizontalHeaderAlignment" Value="Stretch" />
        <Setter Property="SnapsToDevicePixels" Value="True" />
        <Setter Property="UseLayoutRounding" Value="True" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type ZUI:ZGroupBox}">
                    <Border
                        Background="{TemplateBinding Background}"
                        BorderBrush="{TemplateBinding BorderBrush}"
                        BorderThickness="{TemplateBinding BorderThickness}"
                        CornerRadius="{TemplateBinding CornerRadius}"
                        SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
                        UseLayoutRounding="{TemplateBinding UseLayoutRounding}">
                        <Grid SnapsToDevicePixels="True">
                            <Grid.RowDefinitions>
                                <RowDefinition Height="Auto" />
                                <RowDefinition Height="*" />
                            </Grid.RowDefinitions>

                            <Border
                                x:Name="Header"
                                Grid.Row="0"
                                Padding="{TemplateBinding HeaderPadding}"
                                Background="{TemplateBinding HeaderBackground}"
                                BorderBrush="{TemplateBinding BorderBrush}"
                                BorderThickness="0,0,0,1"
                                CornerRadius="{Binding CornerRadiusInner, RelativeSource={RelativeSource TemplatedParent}}"
                                SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
                                UseLayoutRounding="False">
                                <ContentPresenter
                                    HorizontalAlignment="{TemplateBinding HorizontalHeaderAlignment}"
                                    Content="{TemplateBinding Header}"
                                    ContentSource="Header"
                                    ContentStringFormat="{TemplateBinding HeaderStringFormat}"
                                    ContentTemplate="{TemplateBinding HeaderTemplate}"
                                    RecognizesAccessKey="True"
                                    SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
                            </Border>

                            <ContentPresenter
                                Grid.Row="1"
                                Margin="{TemplateBinding Padding}"
                                Content="{TemplateBinding Content}"
                                ContentStringFormat="{TemplateBinding ContentStringFormat}"
                                ContentTemplate="{TemplateBinding ContentTemplate}"
                                SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
                        </Grid>
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>