How to bump up text size & other graphical elements system wide
Managed to try Quartz debug in my Mavericks. After enabling HiDPI display mode, I got this in display preferences.

Noticed only 960 X 540 (HiDPI) is available. which doubles everything that appears on screen. 

very nice and crisp looking font and icons are smooth but it is too big for the need. Just double.

Is there a way to get a resolution option with HiDPI for slightly smaller view size without compromising Graphics engine resolution. My monitor is Samsung 24' LED.