Color test shows spurious lines

[01mf02]

The color test on https://www.egui.rs/#Rendering shows lines when scrolling. At the beginning, there are no such lines. Sometimes, they disappear once the scrolling is done, sometimes they rest. I have the impression that when using the scroll bar rather than the mouse wheel, the lines have a greater tendency to stay.

To Reproduce

1. Go to https://www.egui.rs/#Rendering
2. Click on "Color test"
3. Scroll around, preferably with scroll wheel
4. Observe strange lines appearing

Expected behavior
No spurious lines should appear.

Screenshots

Desktop

• OS: Ubuntu 22.04
• Browser: Firefox 130.0

[emilk]

I think the solution is:

• Align shapes to physical pixel grid #5164

[emilk]

• Duplicare of egui_demo_app color test lines #3667