Hello Ezequiel,
Thank you for writing.
The easiest way to create such a selector is to drag the desired themes to a form and add a corresponding to each team item in
RadDropDownList. Then, when the user selects some item from the drop down, apply the respective theme.
Attached you can find a sample project demonstrating this approach.
I hope that the provided information addresses your question. Let us know if you need anything else.
Greetings,
Stefan
the Telerik team