Just discovered a little trick to have a very saturated view
In Options->adjust view, you have 'original' and 'saturated', but imho 'saturated' doesn't change anything.
To have something really saturated, but less defined, select the little box near 'custom' and set the 1st setting to 100 and the 2nd setting to -100 (or 90/-90, 110/-110, 120/-120, etc)
Now the text is blacker and really more saturated, but less defined.
Edit: sorry, I just saw there is another thread on the subject. Forget that.
Edit2: After playing a little, I think 70/-70 or 75/-75 is the maximum to keep a good quality with the sony original fonts. Beyond that, the quality is really going down quickly (Originally, I've tried with Georgia fonts, and with Georgia fonts 90/-90 or 100/-100 is still okay with the S size)