I appreciate the new option in Crop to Darken the Border. However, it would be even better if there was a slider to control the amount of darkening. I find the darkened but still very visible border distracting. I don't need to see what's being removed; I just want to see what I'll have left...against a black background. A slider would accommodate those like me and those who need, or just prefer, to see exactly what they are excluding.