That is why applications like Deeper are essential.
Deeper is an application that allows us to configure aspects of OS X that cannot be modified by the user . Among the actions we can do are: modify snapshot capture format, Finder options (animation effects, show or not preferences, empty trash, etc… in the Finder menu), 3D or 2D dock and display animation, Safari, Mail, iTunes, the Login image,…
From the same developer as Onyx, Deeper can be downloaded from the Titanium Software website and is completely free . And for those of you who wonder the difference between the two: Deeper is the “official application” for OS tuning or modification issues while Onyx does the same plus the addition of maintenance tasks such as cache removal, permission repair,…