Display error in Ultimate Branding admin page

Hello there,

There is a small bug in the tab display of active modules in the Ultimate Branding plugin.

If I activate 'Custom Login CSS' without having the 'Custom E-mail From Headers' active, the 'E-mail From' tab is shown and can be selected (but no settings).

One more thing; would it be a good idea to add a export/import of settings? Just in case you want to set some default values when creating a new site?