# Apply themes with App.xaml `App.xaml` ```xml ``` # Change themes by ThemeManager Change by `ThemeManager` ```c# ThemeManager.CurrentTheme = ColorThemes.DarkBlue; ``` # Change themes by ResourceDictionary As default we use Classic theme. You also can change theme by adding resource dictionary after generic.xaml. Use one of them: ```xml ``` ## NOTES You can use custom window style named `BrightSharpWindowStyle`. Also defined additional useful styles and extensions. For more info see Demo source code.