Make the header height bigger

Hi,

I'm wondering how to increase the height of the main header on the Studio Theme. By main header I'm referring to the one at the very top, which has the main logo and navigation buttons.

Right now, it only allows for a logo image with a height of 50px max to fit properly. If the logo image is any taller than that, the community panel becomes "detached" from the header, and looks weird. I need to use a logo image with a height of 75px for my design.

Any help with this would be greatly appreciated.

Thanks.