In macOS 26 Tahoe, window rounded corners vary by ...

# compose-desktop

[Xu Moria]

In macOS 26 Tahoe, window rounded corners vary by context—for instance, windows with a toolbar feature extra-large rounded corners. Is there a way to implement these native, context-aware rounded corner styles in Compose Desktop?

[Alexander Maryanovsky]

Not a built-in one AFAIK. You’ll need to use native code.

[hfhbd]

As a developer and macOS user, why Apple, why? 🫠

[seb]

If you want to call native code on macOS I'd recommend borrowing the Foundation classes from IntelliJ Platform 😉

[seb]

It makes it somewhat tolerable

[Arjan van Wieringen]

IMHO these are Apple Design failures. There is a reason the Apple design executive was fired and as such this will be rectified in the futute

[אליהו הדס]

https://nucleus.kdroidfilter.com/targets/macos/#macos-26-window-appearance maybe check this, Because just by compiling with a runtime that was compiled with Xcode 26, we already have larger traffic lights and more rounded edges.

[אליהו הדס]

@Xu Moria I just released a new version of Nucleus with a new macOSLargeCornerRadius() modifier : https://nucleus.kdroidfilter.com/runtime/decorated-window/#macoslargecornerradius-large-corner-radius

[Xu Moria]

Thank you very much! I’ll try it as soon as possible!