testCard is a free and small application for Mac OS X that will allow you to display a test card on any of the screen connected to your mac.
testCard will help you correct your screen display.
NOTE: To buy testCard via the App Store, an Apple account is required.
Here are some key features of "testCard":
· Fit any screen ratios or resolutions.
· Option to change background color and have a gradient or not.
· Option to change the corners color.
· 64-bit processor
What's New in This Release: [ read full changelog ]
· Custom label
· Custom image
· Grid pattern
· PNG export
· Retina optimized