Have DrawingImage inherit color from containing Button - wpf

Question

I have a few buttons that have a common style. This style has a ContentPresenter, which is filled with a DrawingImage in the button declaration.
This works just fine when the DrawingImage uses a predefined brush. However I would very much like my DrawingImage to use the Foreground color that is used in the style, or on the button if it is overridden there.
How can I accomplish this?
My current style:
<UserControl.Resources>
<DrawingImage x:Key="SomeIcon">
<DrawingImage.Drawing>
<DrawingGroup>
<DrawingGroup>
<GeometryDrawing Brush="White" Geometry="PATH" />
<GeometryDrawing Brush="White" Geometry="OTHER_PATH" />
</DrawingGroup>
</DrawingGroup>
</DrawingImage.Drawing>
</DrawingImage>
<Style x:Key="MyButton" TargetType="{x:Type Button}">
<Setter Property="Foreground" Value="Blue" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<ContentPresenter/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</UserControl.Resources>
<Grid>
<Button Style="{StaticResource MyButton">
<!-- I want this icon to be Blue as inherited from the style. -->
<Image Source="{StaticResource SomeIcon}"/>
</Button>
<Button Style="{StaticResource MyButton" Foreground="Red">
<!-- I want this icon be Red as overriden by the button -->
<Image Source="{StaticResource SomeIcon}"/>
</Button>
</Grid>
I only want pure XAML answers. Other XAML routes towards the same goal are also appreciated, for instance using Path instead of DrawingImage.

Answer 1

You could declare the icon resource as a Geometry, and have a Button Style with a Path like this:
<Window.Resources>
<Geometry x:Key="SomeIcon">M0,20 L20,0 40,20 20,40Z</Geometry>
<Style x:Key="PathButtonStyle" TargetType="Button">
<Setter Property="Foreground" Value="Blue"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<ControlTemplate TargetType="Button">
<Path Fill="{TemplateBinding Background}"
Stroke="{TemplateBinding Foreground}"
Data="{TemplateBinding Content}"
Stretch="None"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>
<Grid>
<Button Style="{StaticResource PathButtonStyle}"
Content="{StaticResource SomeIcon}"/>
</Grid>