Reproduction steps:
1. Create a new project
2. Create > UI Toolkit > UI Document
3. Double-click the newly created Asset to open UI Builder window
4. Drag and drop any Element that has Text property into Hierarchy (e.g. Label Element)
5. Enter two words in the Element’s Text property
6. Enable Italic Font Style and select Outline Color in the Text foldout
7. Set Outline Width to 0.9 px or higher
8. Observe the text in the Viewport
Actual result: Artifacts are rendered in the spaces between words
Expected result: No artifacts are rendered in the spaces between words
Reproducible with: 6000.5.0a9 (253a859729df), 6000.5.8f1, 6000.6.0b7, 6000.7.0a4
Not reproducible with: 6000.0.81f1, 6000.3.22f1, 6000.5.0a8
Reproduced on: Ubuntu 24.04, macOS Tahoe 26.5 (M4)
Notes:
- Artifacts are more visible with higher Outline Width values
- Italic Font Style does not need to be enabled to reproduce the issue in 6000.5.8f1 version