Hi Jules,
Since updating to the Juce tip I found my application to look wonky. Here is a screenshot from before:
Screen Shot 2013-11-15 at 9.17.49 AM.png
and after:
Screen Shot 2013-11-15 at 9.12.26 AM.png
Text and paths are blurry, and some lines appear off by half a pixel.
I tracked down the offending commit. It is
57974a793c9808e62c389e4d30eb8b368c041ba6 — Some fixes for minor graphical problems.
I am working on Mac OS 10.8.5.