[iOS] SearchBar placeholder color is not updating on theme change #30596
Description
Description
When the system appearance changes between light and dark mode, the placeholder color in the SearchBar on iOS does not update accordingly. This causes the placeholder text to have poor visibility or incorrect contrast in the new theme.
Screen.Recording.2025-07-13.at.17.06.53.mov
Steps to Reproduce
1 .Create a new .NET MAUI app with a SearchBar control.
2. Run the app on an iOS device or simulator in light mode.
3. Switch the system theme to dark mode (or vice versa) while the app is running or via AppThemeBinding.
4. Observe the placeholder text color in the SearchBar.
Version with bug
9.0.82 SR8.2