Render a circle when switch to 2D mode

I want to render a circle in 2D mode, and when I switch to 2D mode, and render a circle, it show as an ellipse. Can anyone knows why? If I want to show a circle, what should I do?

I think this might be answered by 2D Circle - drawn incorrectly? - #2 by Marco13

That’s make sense, thank you :heart: