<!-- Please use this template while reporting a bug and provide as much info as possible. Not doing so may result in your bug not being addressed in a timely manner. Thanks! If the matter is security related, please disclose it privately via https://github.com/nventive/Uno/security/ --> ## Current behavior <!-- Describe how the issue manifests. --> When switching themes (light/dark) the text set as PrimaryCommand.Label of a NavigationBar fails to update its color. Android: https://github.com/user-attachments/assets/acab4ec7-550a-428d-8b34-1151392288c3 iOS: https://github.com/user-attachments/assets/24df67d6-7189-4eb0-9fdc-2d13fbba3485 Nuget Package: Uno.Sdk - 5.6.20 Uno.Toolkit.WinUI - 6.4.1 Package Version(s): Affected platform(s): - [ ] WebAssembly - [x] Android - [x] iOS - [ ] macOS (AppKit) - [ ] Mac Catalyst - [ ] Skia - [ ] WPF - [ ] GTK (Linux) - [ ] Linux Framebuffer - [ ] Tizen - [ ] Windows IDE: - [x] Visual Studio 2022 - [ ] Visual Studio 2019 - [ ] Visual Studio Code - [ ] Visual Studio for Mac - [ ] Rider Windows - [ ] Rider macOS Relevant plugins: ## Anything else we need to know? <!-- We would love to know of any friction, apart from knowledge, that prevented you from sending in a pull-request -->