Can someone tell me how can I apply themes in to my web App from Yii.and also I need to know where do I have to change the codes… 
Can someone tell me how can I apply themes in to my web App from Yii.and also I need to know where do I have to change the codes…
Take a look at the Theming tutorial
There is an extension that can help you web-app-theme-crud.
Cheers 
i have same problem
I am having same problem with theme…