I've tried to combine the Telerik examples 'Dynamic RadMenu' with 'Switching themes at runtime'.
I've realized, that the subitems of the RadMenu do not change the theme (color) correctly.
I think that the ItemContainerStyle don't work correctly.
I've attached an example with two RadMenu.
First is created dynamically the second is static.
In the menu you can switch to different themes.
Please have look to the submenues (file). The color don't change.
I've also realized that also the size of the icons are displayed differently.