Custom Error 500 Page

Permalink
Hi everyone. I'm somewhat new to Concrete5 and just finished building my first site with it. I'd love to customize the 'Unexpected error' page (error 500). I'm close. I copied and modified the concrete/themes/core/error.php to my application directory (and that DOES work), but I'd love it if I could take advantage of placing the error.php page within my own theme and utilizing its assets. Is this possible?

Thanks!

decibeldesign