HandyControl/src/Shared/HandyControlDemo_Shared/UserControl/Controls/CirclePanelDemoCtl.xaml

<UserControl x:Class="HandyControlDemo.UserControl.CirclePanelDemoCtl"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:hc="https://handyorg.github.io/handycontrol"
             Background="{DynamicResource RegionBrush}">
    <hc:TransitioningContentControl>
        <hc:CirclePanel Margin="64" Diameter="170">
            <Button Style="{StaticResource CirclePanelButton}"/>
            <Button Style="{StaticResource CirclePanelButton}"/>
            <Button Style="{StaticResource CirclePanelButton}"/>
            <Button Style="{StaticResource CirclePanelButton}"/>
            <Button Style="{StaticResource CirclePanelButton}"/>
            <Button Style="{StaticResource CirclePanelButton}"/>
            <Button Style="{StaticResource CirclePanelButton}"/>
            <Button Style="{StaticResource CirclePanelButton}"/>
        </hc:CirclePanel>
    </hc:TransitioningContentControl>
</UserControl>