[TxMt] Changing Theme Based on Bundle?

[nightdots]

Is there a way to automatically have TextMate change to a specified  
theme based on the bundle that is selected?

An example is, when I select to make a Screenwriting bundle file, I'd  
like it to automatically change to my screenwriting default theme  
instead of whatever is currently there.

I've been extremely frustrated trying to figure this out.

Thanks in advance!