Thanks for your question.
In fact, if you want to create a new theme for RadForm, you should separately create the theme for the form and for the title bar. You should not modify any title bar settings when editing the RadForm theme in the Visual Style Builder. After you have created a theme for the form, you should open the RadTitleBar control in the Visual Style Builder and create its theme. Please note that you should give both themes the same name.
If you want to manually insert a RadTitleBar in your form, you should use the ShapedForm since it does not contain a title bar and thus you will not see two title bars in the form.
I hope this answers your question.
Do not hesitate to write back in case you need further assistance or have any questions.
All the best,
the Telerik team
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