In this tutorial, we take a look at what a slate brush is and how a render target material can be applied to the widget blueprint or UMG in Unreal Engine. We wanted to make this tutorial because we couldn’t find one on the topic that was current for 2024.
https://dev.epicgames.com/community/learning/tutorials/pL40/slate-brush-and-render-target-material-in-the-umg-in-unreal-engine-5-4