aistudio-wpf-diagram/Demos/AIStudio.Wpf.DiagramDesigner.Demo/ViewModels/Groups/CustomDefinedGroupDesignerItemViewModel.xaml

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"                    
                    xmlns:dd="https://gitee.com/akwkevin/aistudio.-wpf.-diagram"
                    xmlns:viewmodel="clr-namespace:AIStudio.Wpf.DiagramDesigner.Demo.ViewModels">

    <dd:ColorBrushConverter x:Key="ColorBrushConverter" />
    
    <LinearGradientBrush x:Key="SevenColorsBrush" StartPoint="0,0" EndPoint="1,1">
        <LinearGradientBrush.GradientStops>
            <GradientStop Color="Red" Offset="0"/>
            <GradientStop Color="Orange" Offset="0.17"/>
            <GradientStop Color="Yellow" Offset="0.33"/>
            <GradientStop Color="Green" Offset="0.5"/>
            <GradientStop Color="Cyan" Offset="0.67"/>
            <GradientStop Color="Blue" Offset="0.84"/>
            <GradientStop Color="Violet" Offset="1.0"/>
        </LinearGradientBrush.GradientStops>
    </LinearGradientBrush>
    
    <DataTemplate DataType="{x:Type viewmodel:CustomDefinedGroupDesignerItemViewModel}">
        <Grid IsHitTestVisible="False">
            <Grid.Resources>
                <Storyboard x:Key="LoadStoryboard">
                    <DoubleAnimation By="360"
                                         Duration="00:01:00"
                                         RepeatBehavior="Forever"
                                         Storyboard.TargetName="PathAnimal"
                                         Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(RotateTransform.Angle)">
                    </DoubleAnimation>
                </Storyboard>
            </Grid.Resources>
            <Grid.Triggers>
                <EventTrigger RoutedEvent="FrameworkElement.Loaded">
                    <!--触发动画-->
                    <BeginStoryboard Storyboard="{StaticResource LoadStoryboard}" />

                    <!--一动一静效果更好。-->
                    <!--<BeginStoryboard Storyboard="{StaticResource LoadHeadStoryboardOfSelectedTitle}"/>-->
                </EventTrigger>
            </Grid.Triggers>
            
            <TextBlock Text="{Binding Describe}"
                       Foreground="{Binding FontViewModel.FontColor,Converter={StaticResource ColorBrushConverter}}"
                       FontSize="{Binding FontViewModel.FontSize}" 
                       FontFamily="{Binding FontViewModel.FontFamily}"  
                       FontWeight="{Binding FontViewModel.FontWeight}"
                       FontStyle="{Binding FontViewModel.FontStyle}"                         
                       FontStretch="{Binding FontViewModel.FontStretch}"
                       TextDecorations="{Binding FontViewModel.TextDecorations}"
                       HorizontalAlignment="Center" 
                       VerticalAlignment="Bottom"></TextBlock>
            
            <Path x:Name="PathAnimal"
                Fill="{StaticResource SevenColorsBrush}"
                HorizontalAlignment="Stretch"
                VerticalAlignment="Stretch"
                Opacity="0.5"
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                Stretch="Fill"
                RenderTransformOrigin="0.5,0.5">
                <Path.RenderTransform>
                    <TransformGroup>
                        <TransformGroup.Children>
                            <RotateTransform Angle="0" />
                            <ScaleTransform ScaleX="1" ScaleY="1" />
                        </TransformGroup.Children>
                    </TransformGroup>
                </Path.RenderTransform>
            </Path>
        </Grid>
    </DataTemplate>


</ResourceDictionary>