WPF Dynamic Resource

[ThoraD]

I am just trying to find out how to do things so
I have some shapes in generic.xaml and the same shapes in luna.metallic.x aml
with a different color.
I can load them as a dynamic resource in xaml using a ComponentResour ceKey
and they will change color when I change Theme.

In code I can only load them as static resources.
ComponentResour ceKey cmykey = new
ComponentResour ceKey(typeof(Cu stomControl1), "mykeyl");

Image im1 = new Image();

im1.SetResource Reference(Image .SourceProperty , "cmykeyl");

does not work, im1.source is null. Why ? And how do I do it ?

TIA

ThoraD