[ToDo][Win/iOS][Settings Flyout] Opening Settings Flyout Changes App Theme Without Interacting with Light/Dark Theme Controls #778

Current behavior

Opening the settings flyout changes the theme of the app without having to click on the Light/Dark theme chips controls in the flyout.

Windows:

iOS:

Expected behavior

Opening the settings flyout should not change the theme of the app unless the user interacts with the Light/Dark theme chips controls.

How to reproduce it (as minimally and precisely as possible)

• Open the application in Wide Layout.
• Click on the "Get Started" button on the Welcome Page.
• Click on the user name button in the top left corner of the app at the top of the menu to open the settings flyout.
• Observe that the theme of the app changes automatically without clicking on the Light/Dark theme chips controls.
  (Do multiple retries to notice the issue if needed)

Environment

Nuget Package:

• Uno.Sdk: 5.2.161
• UnoExtensionsVersion: 4.1.28
• UnoToolkitVersion: 6.0.24
• UnoThemesVersion: 5.0.13

Affected platform(s):

• Windows
• iOS
• Android
•  WebAssembly

Additional information

Possible related issue: #780