[Regression] Title color is different and "WinUI Desktop" title name is back for WinUI Package

[ArchieCoder]

Current behavior

Left side: WinUI Package
Right side: Skia Desktop

This is the first time that I see the black background in the title.

Expected behavior

It should output like Skia Desktop

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

No response

Workaround

No response

Works on UWP/WinUI

No

Environment

No response

NuGet package version(s)

5.5.32

Affected platforms

Windows (WinAppSDK)

IDE

No response

IDE version

No response

Relevant plugins

No response

Anything else we need to know?

Similar issue #18586

cc @MartinZikmund

[jeromelaban]

Thanks for the report. Did you explicit set the color to black for the winappsdk version?

[ArchieCoder]

I have this in a newly created Fluent Desktop project.

[ArchieCoder]

When the app is run outside the debugger, the title color is like before 🙃

[ArchieCoder]

For someone who wants a workaround, use the following code in App.xaml.cs before MainWindow.UseStudio()/MainWindow.SetWindowIcon();

#if WINDOWS
        MainWindow.Title = "Your app name";
        
        var titleBar = MainWindow.AppWindow.TitleBar;
        titleBar.BackgroundColor = Colors.White;
        titleBar.InactiveBackgroundColor = titleBar.BackgroundColor;
        titleBar.ForegroundColor = Colors.Black;
        titleBar.ButtonBackgroundColor = titleBar.BackgroundColor;
        titleBar.ButtonInactiveBackgroundColor = titleBar.BackgroundColor;
        titleBar.ButtonForegroundColor = titleBar.ForegroundColor;
        titleBar.ButtonInactiveForegroundColor = titleBar.ForegroundColor;
#endif

[ArchieCoder]

@MartinZikmund When an app uses the multi-window feature, the title has the same title + color issue.

Also, the app icon is not set correctly.