Icon color does not follow theme change with AppThemeBinding

[hugebug4ever]

Describe the bug
Icon color does not apply the theme color with AppThemeBinding, within the same process.
It only apply on widget creation.

To Reproduce
Steps to reproduce the behavior:

1. Create a Maui App project with dotnet 9.0
2. Add an maui icon to the screen
3. Specify a Icon color to the IconColor property, with AppThemeBinding
4. Siwthc app theme ( same app instance ), inspcect the icon color
5. The icon color does not change, but the label color is changed as expected
6. If I kill the process and restart the app again, the icon color changed as expected.

Expected behavior
The icon color should change with the theme changing.

Screenshots
Code sample:

App with light theme:

App with dark theme set dynamically:

Desktop and Smartphone (please complete the following information):

• OS: iOS, Windows. (Android should be the same)
• Version: 4.0.0

Additional context
Add any other context about the problem here.

[AathifMahir]

Describe the bug
Icon color does not apply the theme color with AppThemeBinding, within the same process.
It only apply on widget creation.

To Reproduce
Steps to reproduce the behavior:

1. Create a Maui App project with dotnet 9.0
2. Add an maui icon to the screen
3. Specify a Icon color to the IconColor property, with AppThemeBinding
4. Siwthc app theme ( same app instance ), inspcect the icon color
5. If I restart the app, the color does not change, but the label color is changed as expected

Expected behavior
The icon color should change with the theme changing.

Screenshots
Code sample:

App with light theme:

App with dark theme set dynamically:

Desktop and Smartphone (please complete the following information):

• OS: iOS, Windows. (Android should be the same)
• Version: 4.0.0

Additional context
Add any other context about the problem here.

It seems like bug, I'll push a patch to fix this issue as soon as possible