Private CGSSetWindowBackgroundBlurRadius call removed; NSVisualEffect…

[pszsh]

Hey, I recently submitted an application I made in Rust + ICED to the App Store. It was rejected:

Review Environment
Review date: June 26, 2026

Review Device: MacBook Pro (14-inch, Nov 2024)

Build version reviewed: 1.0.2 (1.0.2)


Guideline 2.5.1 - Performance - Software Requirements

Issue Description


The app uses or references the following non-public or deprecated APIs:


Contents/MacOS/yr_crystals

Symbols:

• _CGSSetWindowBackgroundBlurRadius


The use of non-public or deprecated APIs is not permitted on the App Store, as they can lead to a poor user experience should these APIs change and are otherwise not supported on Apple platforms.

... etc

I investigated and found it was a private call made from winit. So, I fixed it and reckoned I would do the neighborly thing and submit a PR. Not too familiar with submitting PRs to a big repo like this, so, I apologize if I missed something.

Thanks for making winit! I use it in every Rust project I have - I'm fairly certain, so, big gratitude from me to y'all.