Header image in Jetpack mobile theme

Hi,

I am using the Jetpack mobile theme and I’m pretty happy, but I get no header image for the mobile theme.

The desktop theme I’m using (Personal Press from Elegant Themes) does not have the option to set a header image (you can set a “logo” image instead).

Can I set a header image for the mobile theme by using css? Or can I use the same “logo” image I use in the desktop theme?