This guide will introduce you to the themes that MahApps.Metro has and how to create your own.

All of MahApps.Metro's themes are contained within separate resource dictionaries.

How to use the themes

You can choose between these available color schemes:

"Red", "Green", "Blue", "Purple", "Orange", "Lime", "Emerald", "Teal", "Cyan", "Cobalt", "Indigo", "Violet", "Pink", "Magenta", "Crimson", "Amber", "Yellow", "Brown", "Olive", "Steel", "Mauve", "Taupe", "Sienna"

and these base themes:

"Light", "Dark"

So putting all together, the resource names should be:

"Light.Blue" or "Dark.Blue"

Make sure that all resource file names are Case Sensitive!

Use a theme via App.xaml

The fastest way is to specify the theme resource in the App.xaml.

<Application x:Class="SampleApp"
        <!-- MahApps.Metro resource dictionaries. Make sure that all file names are Case Sensitive! -->
        <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Controls.xaml" />
        <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Fonts.xaml" />
        <!-- Theme setting -->
        <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Themes/Light.Blue.xaml" />


Use a theme via ThemeManager

MahApps.Metro has a ThemeManager class that lets you change the theme using code-behind. It can be done in 1 line, like so:

using ControlzEx.Theming;

public partial class SampleApp : Application
    protected override void OnStartup(StartupEventArgs e)

        // Set the application theme to Dark.Green
        ThemeManager.Current.ChangeTheme(this, "Dark.Green");

On a window different to your application's main window

With MahApps.Metro you can have a different theme for a MetroWindow. The main window or any other MetroWindow will keep the specified theme in the App.xaml or window xaml.

            <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Themes/Dark.Red.xaml" />

You can do this also with the ThemeManager, like so:

using ControlzEx.Theming;

public partial class MainWindow : MetroWindow
    public void MainWindow()

        // Set the window theme to Dark.Red
        ThemeManager.Current.ChangeTheme(this, "Dark.Red");

Creating custom Themes

Another nice feature of MahApps.Metro is to use custom created themes or runtime created themes.

Please open the ThemeManager guide for further notice.