Thanks to @carldickson for the nudge – I’ve just wrapped up the new Colour Calibration section in the user guide! 
This one explains how to use the test patterns and calibration panel to fix the brightness gradients for red, green and blue, how to warm up your laser before calibrating, and how to fix your white balance.
If you’ve ever wondered why your colours look weird… this is the fix. 
Check it out in the guide, and let me know if anything’s unclear or if you spot ways to make it even better.
Seb