question

Hi,@GuoLearn-6547. Welcome Microsoft Q&A.
You could refer to the following code to set the Button.

Xaml:

 <StackPanel>
          
         <Button x:Name="btn"  >
             <Button.Template>
                 <ControlTemplate>
                        
                     <Canvas Margin="100">
                         <Path Stroke="LightBlue" StrokeThickness="5">
                             <Path.Data>
                                 <PathGeometry>
                                     <PathFigure StartPoint="0,-50">
                                         <ArcSegment Point="42.5,-26.2" Size="50,50"   IsLargeArc="False" SweepDirection="Clockwise"/>
                                     </PathFigure>
                                     <PathGeometry.Transform>
                                         <RotateTransform Angle="10"/>
                                     </PathGeometry.Transform>
                                 </PathGeometry>
                             </Path.Data>
                         </Path>
                         <Path Stroke="LightPink" StrokeThickness="5">
                             <Path.Data>
                                 <PathGeometry>
                                     <PathFigure StartPoint="0,-50">
                                         <ArcSegment Point="42.5,-26.2" Size="50,50"   IsLargeArc="False" SweepDirection="Clockwise"/>
                                     </PathFigure>
                                     <PathGeometry.Transform>
                                         <RotateTransform Angle="70"/>
                                     </PathGeometry.Transform>
                                 </PathGeometry>
                             </Path.Data>
                         </Path>
    
                         <Path Stroke="LightGreen" StrokeThickness="5">
                             <Path.Data>
                                 <PathGeometry>
                                     <PathFigure StartPoint="0,-50">
                                         <ArcSegment Point="42.5,-26.2" Size="50,50"   IsLargeArc="False" SweepDirection="Clockwise"/>
                                     </PathFigure>
                                     <PathGeometry.Transform>
                                         <RotateTransform Angle="130"/>
                                     </PathGeometry.Transform>
                                 </PathGeometry>
                             </Path.Data>
                         </Path>
                         <Path Stroke="LightCoral" StrokeThickness="5">
                             <Path.Data>
                                 <PathGeometry>
                                     <PathFigure StartPoint="0,-50">
                                         <ArcSegment Point="42.5,-26.2" Size="50,50"   IsLargeArc="False" SweepDirection="Clockwise"/>
                                     </PathFigure>
                                     <PathGeometry.Transform>
                                         <RotateTransform Angle="190"/>
                                     </PathGeometry.Transform>
                                 </PathGeometry>
                             </Path.Data>
                         </Path>
                         <Path Stroke="LightGray" StrokeThickness="5">
                             <Path.Data>
                                 <PathGeometry>
                                     <PathFigure StartPoint="0,-50">
                                         <ArcSegment Point="42.5,-26.2" Size="50,50"   IsLargeArc="False" SweepDirection="Clockwise"/>
                                     </PathFigure>
                                     <PathGeometry.Transform>
                                         <RotateTransform Angle="250"/>
                                     </PathGeometry.Transform>
                                 </PathGeometry>
                             </Path.Data>
                         </Path>
                         <Path Stroke="LightSalmon" StrokeThickness="5">
                             <Path.Data>
                                 <PathGeometry>
                                     <PathFigure StartPoint="0,-50">
                                         <ArcSegment Point="42.5,-26.2" Size="50,50"   IsLargeArc="False" SweepDirection="Clockwise"/>
                                     </PathFigure>
                                     <PathGeometry.Transform>
                                         <RotateTransform Angle="310"/>
                                     </PathGeometry.Transform>
                                 </PathGeometry>
                             </Path.Data>
                         </Path>
                         <StackPanel Margin="-20,-20">
                             <TextBlock  Text="hello" Width="30" Height="20" FontSize="10" Background="AliceBlue"/>
                             <Image Source="images.jpg" Width="45" />
                         </StackPanel>
                            
                     </Canvas>
    
                 </ControlTemplate>
             </Button.Template>
         </Button>
     </StackPanel>

The result:

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