In this how to video, you will learn how to change hair color in a photo using GIMP. First, download and install the program. Open it and find the image you want to change. Next, zoom in to get a full view of the hair. Now you should go to the paths tool. Highlight all around the hair to select it. Once this is done, go to select and select From Path. Marching ants should go around the selection. Now, go to colors and select Color Balance. Adjust the color sliders to change the hair color. Once you are done, click okay to complete it. Go to select and select none to remove the selection. Now the hair color change is complete.