Steps to reproduce:

1. Create new Unity project
2. Create new UI Document in Project window
3. Open new UI Document in UI Builder
4. In UI Builder > Library enable "Editor Extension Authoring"
5. Add Color Element to the Hierarchy
6. Save changes
7. Create UIDocument in Hierarchy window
8. Add newly created UXML file to Inspector > Source Asset
9. Enter Play mode
10. In Game view press on white Color Picker value Element
11. Observe the Color Picker window and Console window

Actual results: Color Picker UI is broken, warnings are thrown in the Console window - Unable to find style 'ColorPickerExposureSwatch' in skin 'GameSkin' <called outside OnGUI>
UnityEngine.UIElements.UIElementsRuntimeUtilityNative:UpdatePanels ()

Expected results: Color Picker window UI is not broken, no warnings are thrown in the Console window

Reproducible with versions: 6000.0.49f1, 6000.1.4f1, 6000.2.0b2

Tested on (OS): Windows 11

Notes:

• This also breaks Color Picker in other windows, for example select Directional Light in Hierarchy window > in Inspector window find Light component > Filter > open Color Picker