That is the great thing about our Distro. We randomly create the Manage and MySQL password. The first time your log into the GUI you create your own GUi username and password and there is no stock password for the system
The root password is set by you on install so nothing to change there either.
The root mysql password is just passw0rd. After lots of internal talks and chatting with others on the next release we are not going to set any mysql root password.
The theory being if someone has root shell access they should have access to mysql. It is kind of pointless to set a mysql password for the root users since they can single user mode into mysql in about 2 seconds even if there is a mysql root password.