Wpf样式视框路径

Question

I have an user control like this.

Button
    Viewbox
        ContentPresenter
           Grid
               Path

I need to change Button.Viewbox.Grid.Path.Fill color.

Is there any way to do this?

My Style.xaml:

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Style x:Key="PathStyle" TargetType="{x:Type Viewbox}">
    <!-- ?????????????????? -->
</Style>

I tried this

<Button>
    <Viewbox Width="18" Height="18" Style="{DynamicResource PathStyle}">
        <ContentPresenter Content="{Binding Converter={StaticResource uriToUIElementConverter}, ConverterParameter=Images/New.xaml}"></ContentPresenter>
    </Viewbox>
</Button>

New.Xaml

<Grid xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
    <Path xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Name="newDocument" Fill="#FF000000" Stretch="Fill">
        <Path.Data>
            <PathGeometry FillRule="Nonzero" Figures="M43,30L50.75,30 43,22.25 43,30z M52,34L39,34 39,21 24,21 24,45 20,45 20,17 43.25,17 56,29.75 56,59 34,59 34,55 52,55 52,34z M28,38L33,38 33,46 41,46 41,51 33,51 33,59 28,59 28,51 20,51 20,46 28,46 28,38z M20,59L20,52 24,52 24,55 27,55 27,59 20,59z" />
        </Path.Data>
    </Path>
</Grid>

Answer 1

Uhm,

<Path Fill="Red" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Name="newDocument" Stretch="Fill">
    <Path.Data>
        <PathGeometry FillRule="Nonzero" Figures="M43,30L50.75,30 43,22.25 43,30z M52,34L39,34 39,21 24,21 24,45 20,45 20,17 43.25,17 56,29.75 56,59 34,59 34,55 52,55 52,34z M28,38L33,38 33,46 41,46 41,51 33,51 33,59 28,59 28,51 20,51 20,46 28,46 28,38z M20,59L20,52 24,52 24,55 27,55 27,59 20,59z" />
    </Path.Data>
</Path>

?