[ubuntu] lemur color calibration

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http://ubuntuforums.org – I'm just getting set up on a new lemur ultra. It seems to me that the colors on the display are washed out. I've looked at all the display intensity levels, but the washed-out effect is present at all light levels. There are references to calibrating the colors of the monitor (sorry, I forget where I saw that), but the choices are the system76 driver, which is in use, or a custom set of calibrations. Is there a description of how to set up color calibrations? A tool to help do it? Thanks for any info! (Hardware)