<Grid
            xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
            xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" x:Name="PanBack" mc:Ignorable="d" x:Class="MyExtraButton"
            Width="40" RenderTransformOrigin="0.5,0.5" ToolTipService.Placement="Left" ToolTipService.VerticalOffset="16" ToolTipService.HorizontalOffset="-8" Height="0">
    <Grid.RenderTransform>
        <ScaleTransform ScaleX="0" ScaleY="0" />
    </Grid.RenderTransform>
    <Border x:Name="PanClick" CornerRadius="1000" BorderThickness="0.001" Background="{StaticResource ColorBrushSemiTransparent}"/>
    <Grid x:Name="PanScale" IsHitTestVisible="False" RenderTransformOrigin="0.5,0.5" Margin="0,10,0,0">
        <Grid.RenderTransform>
            <ScaleTransform />
        </Grid.RenderTransform>
        <Border x:Name="PanColor" CornerRadius="1000" BorderThickness="0.001" Background="{DynamicResource ColorBrush3}">
            <Border.Effect>
                <DropShadowEffect ShadowDepth="0" BlurRadius="10" Opacity="0.2" />
            </Border.Effect>
        </Border>
        <Border x:Name="PanProgress" CornerRadius="1000" BorderThickness="0.001" Background="#2FFFFFFF" ClipToBounds="True" Visibility="Collapsed">
            <Border.Clip>
                <RectangleGeometry x:Name="RectProgress" Rect="0,5,40,35" />
            </Border.Clip>
        </Border>
        <Path x:Name="Path" Stretch="Uniform" Margin="12" Fill="{DynamicResource ColorBrush8}" RenderTransformOrigin="0.5,0.5">
            <Path.RenderTransform>
                <ScaleTransform />
            </Path.RenderTransform>
        </Path>
    </Grid>
</Grid>
