Unsanity today announced the release of ShapeShifter 2.3, the latest update to its Mac OS X customization software. New features include: guiTweak now allows users to manually set colors in any theme; a completely revamped the app skin compatibility system; as well as more theme capabilities, and bug fixes. ShapeShifter is priced at US$20 and requires Mac OS X 10.3 or later.