hi

i used fluent theme for radwindow

but that is transparent!

Hello,

Thank you for the provided screenshot.

To remove the transparent effect, you can use the ThemeEffectsHelper custom class and its attached property IsAcrylic like so:

The transparent/blurred effect is only available on Windows 10. In any other operating system it would result in a transparent Window. You can read more on the Fluent article under Visual Effects Helpers.

Attached, you can find a sample project in which I've set the ThemeEffectsHelper.IsAcrylic property in MainWindow.xaml and set it commented in App.xaml.cs in case you want to use apply it globally.

I hope you find this helpful.

Regards,
Dimitar Dinev
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