This is a quick and easy way to change the hair color of a person in Gimp
Step 1: What You Will Need:
Gimp (You can download this for free at www.gimp.org)
Step 2: Start Gimp
Once you have gimp installed on your computer, run it.
Step 3: Open Your Image
Once Gimp is running you will want to open your image in Gimp.
Go to file (Top left corner) and select open. Then select the file you want to use and press the open button.
Step 4: Create New Layer
With your image in Gimp your going to want to create a new layer.
At the top go to Layer > New Layer.
You should see a new layer pop up on the right.
At the top of the layer area you change the mode of the new layer. Click on the arrow and select Overlay.
Step 5: Paint
Now you can select the paint brush tool.
Select the color you want and start painting.