kgamma 4:4.5.5-0ubuntu2 (amd64 binary) in ubuntu maverick

 This package contains a settings panel for adjusting the brightness, contrast,
 and gamma-correction of a monitor. Test patterns are shown to help
 determine the settings that accurately display the full range of colors.
 .
 Each of the red, green, and blue components can be adjusted individually,
 or all three components can be adjusted together.
 .
 This package is part of the KDE 4 graphics module.