Changing Colors In A Picture Using Paint.net

Step 2 Open Paint.net

Open Paint.net and your image. I used a red car for an example. First, click Adjustments, Hue / Saturation. You can now mess with the colors. I only changed the hue because I think it looks better without the saturation being changed. You can save it now, or go on, to learn how to change multiple parts of the image.