How to update text formatting properties of an Annotation in WPF Diagram (SfDiagram)?

In the WPF Diagram, you can update the text formatting properties of an annotation with the AnnotationEditorViewModel. It includes properties for font style, font size, font family, text decoration, font weight, foreground color, and background color. Here is a simple code example to do that:

XAML Code Snippet:

<syncfusion:NodeViewModel x:Name="node" Shape="{StaticResource Rectangle}"
                   OffsetX="250" OffsetY="200" 
                   UnitHeight="150" UnitWidth="150">
   <syncfusion:NodeViewModel.Annotations>
       <syncfusion:AnnotationCollection>
           <syncfusion:AnnotationEditorViewModel Content="Node" 
                                                 FontStyle="Italic" FontSize="17" 
                                                 FontFamily="TimesNewRomen" 
                                                 TextDecorations="Underline" 
                                                 FontWeight="Bold" 
                                                 Foreground="Black" Background="Yellow"/>
       </syncfusion:AnnotationCollection>
   </syncfusion:NodeViewModel.Annotations>
</syncfusion:NodeViewModel> 

Refer to the documentation to learn more about working with annotations using the AnnotationEditorViewModel.
Documentation: Positioning and Appearance in WPF Diagram control | Syncfusion®

Conclusion
I hope you enjoyed learning about how to update the TextDecoration and Foreground properties of an Annotation in the WPF Diagram.
You can refer to our WPF Diagram feature tour page to learn about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications.
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