In this tutorial, we explore how Color and Opacity and Foreground Color operate on the User Widget or Widget Blueprint in Unreal Engine. Understanding the purpose of these controls can ultimately save you time when building or creating user interfaces.
https://dev.epicgames.com/community/learning/tutorials/7dxd/understanding-color-opacity-and-foreground-color-on-the-user-widget-blueprint-in-unreal-engine-5-4