Rendering TextBlock implement text gradient

hello,
I have learn some basic knowledge about xenko from the sample.I have add UI in my scene and I implement a script to change the overall color of the text in TextBlock.
How can I use a render to implement TextBlock text gradient like tthis?
a

Currently it is not possible as shader can’t be applied to UI elements.
That is something we would like to be able to do but it requires a new way of rendering the UI (or a new UI api/implementation).