ofxGui Slider with non-linear scale

Is there a way to make the ofxGui slider scale non-linear? It would be good to have the step size of the scale of slider increase with larger value (sort of proportional to the current slider value). For example, if the slider value is from 0 - 10000, it would be good if I move the slider with same distance in smaller value region, the change in absolute value is smaller. And if I move the slider with same distance in larger value region, the change in absolute value is larger. So the change is value is sort of same percentage-wise, not in absolute value.