Thanks! But how can I access the default or standard chart color palette, in order I can use the predefined colors for a given theme?

Thank you very much.

I am using ThemeManager.ApplicationTheme = new Infragistics.Themes.MetroDarkTheme(); to load the proper theme.

Is it also possible to use the colors from the applied ApplicationTheme? Is there a generic way to access the default chart colors, without using the specialised theme xaml file?

By applying the selected theme, you are already using the xaml files. 

ThemeManager does the merging of the resources for you, so accessing the colors used in the theme from code behind will still go with the following piece of code:

(Application.Current.Resources.MergedDictionaries[0])["ColorNumber"]

This means that the code above will be referencing to colors used in the MetroDarkTheme in your case.

If you do not want to use the theme files at all, you can just retrieve the color codes and use them without a theme, applying them to the control UI as per your requirements.

Should you have more questions, please let me know.

Using

string color = "Color_00" + $"{value}";
Color color1 = (Color)(Application.Current.Resources.MergedDictionaries[0])[color];

doesn't use the themed chart colors. In my case the colores are different from black to white.

Any suggestion?

Hello Markus,

MetroDark theme uses 75 different colors, with nearly 30 of them being black and white shades. It is very likely that all colors you have chosen to be out of them, so please refer to the documentation in the xaml file, and choose accent or chart series colors.

As per my previous reply, you can check all of the colors in the MetroDark.Theme.Colors.xaml file. The path of the file should be something like C:\Program Files (x86)\Infragistics\2019.1\WPF\Themes\MetroDark. After that you can right click on the file and click "Edit". If you do not have an editor, notepad will do. From there you can see all the colors, with comments:

<!--Base Colors-->
<Color x:Key="Color_000">#FF282828</Color>
<Color x:Key="Color_001">#FFFFFFFF</Color>

<!--Transparent and Whites with transparency-->
<Color x:Key="Color_010">#E5FFFFFF</Color> <!--90% White-->
<Color x:Key="Color_011">#BFFFFFFF</Color> <!--75% White-->

<!--Theme Accent colors -->
<Color x:Key="Color_023">#FF0086AF</Color>
<Color x:Key="Color_024">#FF00AADE</Color>

<!--Colors for Chart Series-->
<Color x:Key="Color_035">#FF006481</Color>
<Color x:Key="Color_037">#FF8A9B0F</Color>

Should you have more questions, please let me know.