From that very thread:
Originally Posted by the archtypical MythTV developer:
Thought I would share with you all that I am working on a new theme that I hope to have done for .23.
The theme is going to be released under a fairly restrictive license that disallows copying or derivative works, so I'm not anticipating this ever being distributed with Myth. 2) I'm using proprietary fonts that I cannot/will not distribute. I will provide links for where you can purchase the fonts (about $15) but will leave it up to the user to procure them.
.. it's fun to be a part of something lots of people in the community use.
Sounds really encouraging as a future direction for the project.