Default Elgg Header Like FB?

Dear Elggers

I have a question and I'm not sure if has been asked already in forums as I have searched but could not find. So here I'm asking..

Is it possible to make elgg default theme's header same as cool theme or same as facebook?

There are some nice elgg custom themes around but all are with bugs, therefore I would like to use elgg default theme which is error / bug free theme. 

I would like to make my header same as cool theme/ facebook theme. I'm sure coders/ elgg experts can do that but waiting for the reply, please is there anyone who can help/ guide.

Many thanks in advance

Kindest Regards,

Cheers