Our website provided a free download of DisplayTester 1.2 for Mac. The following version: 1.2 was the most frequently downloaded one by the program users. This free Mac app was originally designed by 1951FDG. The application's installer is commonly called DisplayTester 1.2.zip. The application lies within System Tools, more precisely Device Assistants. The latest version of the application is supported on Mac OS X 10.5 or later.
From the developer:
This application checks if your display has any dead pixels on screen. DisplayTester fills the screen with the color chosen in the standard Mac OS X color picker. You can launch DisplayTester app and choose File -> Show Colors or press key combination "Command Shift C".
You may want to check out more Mac applications, such as Macfilink, LaCie DVD Update Tool or PodManager, which might be similar to DisplayTester.