In Photoshop, alongside the hue/saturation option, there is a button to click that can make the layer you're dealing with a single colour. No such option exists in paint.net, which sucks if you are dealing with hue and saturation and the sliders don't do that good of a job of getting the hue you want in your image. For example, one of the images I am dealing with has a lot of greens in it. On either end is either blue or purple; brown is the colour I'm looking for in this case. Is there any other way I can get what I want out of this aside from using sepia, which doesn't give me the desired effect?