This is a feature request from Josh Steelman. Unique styles sort of accomplishes the desired feature, but it would require more effort on the users part when all they really want is what is offered by the ranged style with the min/max exposed for tinkering. Users would then specify the min, max, number of intervals and color scheme and MAEviz will use the min/max entered instead of the min/max of the field selected to generate color intervals.

Stretch for 2.1