. Fixed clumsy calibration grid walking that didn't find the real start grid node
. Started calibrating materials
 => Min/Max swatches show broken pixels
 => Need to do a statistical analysis of brightest/darkest pixels and retrieve the average value, not the actual min/max single values that are too out of touch with the gaussian distribution
  ==> Gonna take hell of a time longer to capture an image if I have to insert brightest/darkest pixels into a list and sort it... :(