{
  "image_test" :  {
    "differenceTolerance" : {
       "Canvas.png"   : 0.06
    }
  }
}
{
  "image_test" :  {
    "differenceTolerance" : {
       "Canvas.png"   : 0.13
    }
  }
}
Increase error threshold due ot blending issues in pcp-with-labels.inv
PlottingGL: Increase error threshold due ot blending issues in pcp-with-labels.inv
