How to apply portal themes for an iView?

Hi All,

I have developed a webdynpro application and upload this application in an iView in portal.

Here I am able to apply the theme for the whole portal. But I want to apply the theme only for my iView.

Is it possible to apply the theme for individual fields in application, which is developed in webdynpro?

Please assist me how to do this.

Thanks in advance

Raj