Theme working in design time but not at runtime

[James]

I have a base form inherited from RadForm and in the constructor I added the following.

Public Sub New()
    MyBase.New()

    ThemeResolutionService.ApplicationThemeName = "VisualStudio2012Dark"
    Me.ThemeName = "VisualStudio2012Dark"
End Sub

When I open the BaseForm in VisualStudio I can see that the form is "Dark" but when I run the application, the form is not "Dark".
The titlebar font / icons did change from their original look "for example the X close button looks 3D" but they also did not take on the "Dark" theme.

I have tried several of the other themes and they all working at design time but not runtime.

[James]

Nevermind. 
It works if I call InitializeComponent()

Public Sub New()
    MyBase.New()
   
    InitializeComponent()

    ThemeResolutionService.ApplicationThemeName = "VisualStudio2012Dark"
    Me.ThemeName = "VisualStudio2012Dark"
End Sub