#2749 Fix settings screens blinking and improve iOS 26 look

[sosnovsky]

This PR fixes blinking of settings screens + updates app icon and button styles for iOS 26 look

close #2749

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Tests (delete all except exactly one):

• Does not need tests (refactor only, docs or internal changes)

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To be filled by reviewers

I have reviewed that this PR... (tick whichever items you personally focused on during this review):

• addresses the issue it closes (if any)
• code is readable and understandable
• is accompanied with tests, or tests are not needed
• is free of vulnerabilities
• is documented clearly and usefully, or doesn't need documentation

[sosnovsky]

Hi @martgil, can you please check this PR (or just approve it), as Ioan isn't working with us anymore. I'll then prepare a new release for App Store. Thanks!

[martgil]

Thanks @sosnovsky still currently reviewing this. Sorry for waiting.

[martgil]

@sosnovsky Do you ever get this kind of error message on xcode?

Failed to load container for document at url: file:///Users/mart/git/flowcrypt-ios/FlowCrypt.xcodeproj

The project at ‘/Users/mart/git/flowcrypt-ios/FlowCrypt.xcodeproj’ cannot be opened because it is in a future Xcode project file format. Adjust the project format using a compatible version of Xcode to allow it to be opened by this version of Xcode.

I'm using Xcode 26.3 Build version 17C529 on latest mac 26.4.1. Any idea?

[sosnovsky]

Hi @martgil, you probably need to update your Xcode to the latest 26.4.1 version (https://apps.apple.com/app/xcode/id497799835), it should fix this error

[martgil]

Yeah, you're right. I wonder why such update do not exist from the App store itself. I'll leave my review shortly.

[martgil]

Nice fix! I no longer notice any blinking screens when navigating between settings 👍

[sosnovsky]

@martgil thanks for checking!