User wanted to use a gradient scale, but specify exact values to peg to specific colors. Would be great to be able to add a threshold or peg for the specific colors in the palette i.e. 0=red 100=white 125=green. You can workaround this by hardcoding the min/max of the color scale and then adding colors until they line up (which are evenly distributed across the scale) with the number you want to peg, but this is sort of confusing and not straightforward.