Add Noise to Image in Ui Widget

Development Rendering
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1

I want to add Noise like in the Post Processing to my Ui Widget Black Background.

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11891×933 117 KB

This is how it looks like right now.
Is there anyway I can add Post Processing to the UI Widget or add Noise manually?

2

You can create a Material and set it to User Interface domain. In the shader editor you can add a Noise node on top of a black colour, and set that material as the Image in the Brush.