See page 103 of the manual. The adjustments to contrast, sharpness, color saturation etc. are done under Custom Colors.
Hope this helps,
Otto is quite right. There's no ajdustment available in the Standard Menu but you can increase Sharpness, saturation and constrast in the Custom Colors menu.
This will GREATLY improve the clarity and color of your images.
I'd suggest only the following be changed to the following to achieve much richer results:
Sharpness + 1
Saturation: +1 or, if you want the pictures to resemble the Pro1 camera: +2 (max)
In Default Mode (straight out of the camera at factory preset value), the images may appear similar to a RAW image. They may seem softer and less colorful. So you'll want to crank them up a little to take advantage of the excellent in-camera processor.