When switching Light/Dark theme TextBox does not update context menu foreground until the app is restarted

[gmgallo]

Describe the bug

Working on an packaged app I noticed that after switching the Theme to Light or Dark the TextBox popup context menu only updates the background but not the foreground of the popup menu, resulting in a very dark text on a dark background or almost invisible text in a light background.
Restarting the app it works correctly in either starting theme, until you switch the theme.

Steps to reproduce the bug

Create a new app with Template Studio for WinUI including one blank page and Theme selection page.
Add a textbox on the blank page:
<TextBox Header="Inuput text" PlaceholderText="Type some text here and right click on it" Height="60" Width="300"/>
Swicth the theme and test again.
Close the app with the oposit theme and repeat the test.

Expected behavior

No response

Screenshots

NuGet package version

No response

Windows app type

• UWP
• Win32

Device form factor

Desktop

Windows version

Windows 10 (20H2): Build 19042

Additional context

No response

[github-actions]

This issue is stale because it has been open 180 days with no activity. Remove stale label or comment or this will be closed in 5 days.