Use of sprites as UI Toolkit VisualElement background image is broken in Unity 2022.2.0b13 when sprites are part of a SpriteAtlas ( as per this official forum post ): they are rendered solid white. Sprites are rendered as expected once SpriteAtlas is deleted. Bug report: CASE IN-21747
Looks like a fix for this landed for 2022.2.0b15 and above 
1 Like