Sometimes you want to add color to the gray regions of an image. First, load the image to modify. By default Add Hue to Gray Scale Areas option is off.
Turn on Add Hue to Gray Scale Areas and adjust the color balance factor.
Click the thumbnail icons to adjust the color balance. In this example we have added small amounts of red and yellow to the
overall image (except the rear indicator, which was protected with a shape mask layer).
Although the effect is good, the alloy wheels have been tinted. Cancel the operation, and create another shape mask layer
to protect the wheels and tires. Tint the car again.
