QMS Magicolor WX User Manual page 70

Notes Adjust the scroll bars to the left to increase brightness and to
the right to decrease brightness.
If the Red, Green, and Blue check boxes are all left unchecked,
the Red, Green, and Blue scroll bars will adjust independently.
If any two check boxes are checked, the corresponding scroll
bars adjust together. If all three check boxes are checked, all
three scroll bars adjust together.
Checking the Linear=1.0 box disables the Red, Green, and
Blue scroll boxes and sets each input RGB gamma correction
to 1.000 (brightness equal to input value).
Purpose Selects a predefined test picture.
Choices 1: Reference Colors
2: RGB Test Colors
3: NTSC Color Bar
Default RGB Test Colors