Remember those days, when you could see nice ASCII-style Beastie when your FreeBSD start up? I remember that when i used to work with FreeBSD 5.3. With new major releases, such as 6 and 7, the default logo is an ASCII word 'FreeBSD'.
If you look into /boot/beastie.4th you will see that all available logos are defined here.
The acceptable logos are:
- fbsdbw
- beastie
- beastiebw
- none
So if you want to change the default logo, just put the following line in you /boot/loader.conf (I have chosen 'beastiebw')