TitleBar windows - Minimise/ close buttons become invisible with theming #33975
Description
Description
Cant see any properties to control the built in windows buttons, when changing the theme of the app the buttons become invisible -
2026-02-09.22-05-36.mp4
Steps to Reproduce
Set the app.xaml.cs to the following -
public partial class App : Application
{
Window? _mainWindow;
public App()
{
InitializeComponent();
}
protected override Window CreateWindow(IActivationState? activationState)
{
_mainWindow = new Window(new MainPage())
{
Title = "Cockpit",
TitleBar = new TitleBar
{
BackgroundColor = Color.FromArgb("#181818"),
ForegroundColor = Color.FromArgb("#CCCCCC"),
HeightRequest = 48
}
};
return _mainWindow;
}
public static void UpdateTitleBarTheme(string theme)
{
App? app = Current as App;
if(app?._mainWindow?.TitleBar is TitleBar titleBar)
{
if(theme == "light")
{
titleBar.BackgroundColor = Color.FromArgb("#F8F8F8");
titleBar.ForegroundColor = Color.FromArgb("#3B3B3B");
// Update button text color
if(titleBar.TrailingContent is HorizontalStackLayout stack &&
stack.Children.FirstOrDefault() is Button btn)
{
btn.TextColor = Color.FromArgb("#3B3B3B");
}
}
else
{
titleBar.BackgroundColor = Color.FromArgb("#181818");
titleBar.ForegroundColor = Color.FromArgb("#CCCCCC");
// Update button text color
if(titleBar.TrailingContent is HorizontalStackLayout stack &&
stack.Children.FirstOrDefault() is Button btn)
{
btn.TextColor = Color.FromArgb("#CCCCCC");
}
}
}
}
}Call UpdateTitleBarTheme withing the app somewhere
Link to public reproduction project repository
No response
Version with bug
10.0.30
Is this a regression from previous behavior?
Not sure, did not test other versions
Last version that worked well
Unknown/Other
Affected platforms
Windows
Affected platform versions
No response
Did you find any workaround?
No response