How do I change the background color of the UMG editor?

How do I change the background color of the UMG editor?

I’ve started creating UMGs, but the background color is black, so it’s hard to check the colors.
In our project, we’re dealing with a UI that mainly uses black, so a light or transparent background color would be preferable.
Even if I set the [Appearance] > [Graphs] item in the project settings, it wasn’t reflected in the Widget editing screen, only in BP.

Try setting a plain image as the backdrop:

Thanks for the quick response.
With that setting, it will only be reflected in the Blueprint Graph. I’m talking about the background of the UserWidget Designer editor.

You can change themes:

Thread with details:

No matter how you alter the theme, the editor will simply become a mess, and you cannot change the background colour.

Instead, locate Designer > PreviewBackground in the Details window and set your preferred image there.

For grey or white backgrounds, we recommend using the engine content assets ‘127gray’ or ‘WhiteSquareTexture’.