Chameleon, the flexible Moodle theme.

Some basic information:

You must not write hooks as comma separated lists of elements like 

td#middle-column div.bt, 
div#middle-column div.bt {
    ...
}
in Chameleon themes because the Chameleon engine can't handle these comma lists. Please write two seperate statements instead. 
td#middle-column div.bt {
    ...
}
div#middle-column div.bt {
    ...
}

A Moodle Theme from Urs Hunkler, unodo and Andrew Walker, Alton College.