[mythtv] OS X: couldn't find theme

[Michael J. Sherman]

I've been doing svn updates for my Mac OS X frontend for a while with
the same make distclean; svn update; ./configure; qmake; make.
Tonight, on trying to start up the front end, it quickly fails out with:

Could not find theme: blue
Couldn't find theme blue

The themes are in the correct locations under /usr/local/share/mythtv/
themes/, and I can't find anything that I've done differently. Any
ideas on this?  I also tried wiping all DB entries from the settings 
table for this frontend, but even on a clean install I still get this 
problem.  Any way to determine exactly where it is attemping to look 
for the themes?

Thanks
-Michael