Re: [csswg-drafts] [css-borders-4] Rendering of outset shadow spread with concave 50% corner-shapes (#13037)

Here are some updated outputs rendered directly by canvas with 3 different line-joins:

```css
border-radius: 50%;
corner-shape: notch square bevel scoop;
```
<img width="800" height="300" alt="Image" src="https://github.com/user-attachments/assets/d7f04eb6-df95-4ed1-a82f-abcfbcdc29af" />

`miter` is the most consistent because that's how `square` corners are rendered today, despite `round` being prettier in some scenarios.

I think this is the most sensible choice.



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Received on Tuesday, 4 November 2025 17:33:01 UTC