public ImmutablePair<Float, Float> getRange() {
        return new ImmutablePair<>(binding.sliderInternal.getValues().get(0), binding.sliderInternal.getValues().get(1));
    }
@param displayFactor is only used in context of value input / validation, but not for labels
main/src/main/java/cgeo/geocaching/ui/ContinuousRangeSlider.java