Widgets are much darker in packaged than in the editor

Development Programming & Scripting UI
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1

I’ve found similar questions on the Internet even dating back to version 4.8, but no viable solutions, unfortunately.

Every UI element is a lot darker in the packaged game. Example:

317927-loading-editor.png

317928-loading-packaged.png

Gamma and auto exposure have no effect on UI, only on the game, so those are irrelevant.

Platform is Windows.

What may be the cause of it?

Thank you!

2

Apparently this was caused by Frame Pixel Buffer Format set to Float RGBA instead of the default 10bit RGB, 2bit Alpha.

I had changed it to Float RGBA to try and get rid of stuttering (unsuccessfully), and since it didn’t affect anything else visually, I didn’t bother to change it back.

With Frame Pixel Buffer Format set to default 10bit RGB, 2bit Alpha, widgets have their full color in the packaged version.