yep what i asked above
From the Read Me:is a utility that allows you to easily turn on all or specific pixels on your LCD display, allowing you to check for bad or dead LCD pixels.
"Red" activates all red piXels, "Blue" activates all blue piXels, and "Green" activates all of the green piXels. The "Black" and "White" tests activate or deactivate all red, green, and blue piXels respectively.