I just reimaged my Mac Book so I reinstalled Ampps 2.6. When I installed it I looked at the Mysql server and there where about 10 WordPress databases installed, and a to other databases - jamr530, mage382. Is something going on here. Also did the theme change. It is all black now.
Same for me (on iMac, Yosemite) and it also contains preexisting entries in the mysql and apache log files that threw me off for a moment. Seems there might be a scriptable way to clean those all out before a release build.