Screen 640x480 is a utility for Web designer to see which part of the screen their website should be viewable inside, so it can be viewed on older Macs. Quartz Extreme recommend for better performance.
Version 2.0 adds the following:
- Menu entries to choose resolution between 640x480, 800x600 or 1024x768.
- The non darken area can now be placed on one of the 4 corners of your screen.
Mac OS X 10.2 or later