The Power of Gray - The Photoshop: Professional Retouching and Compositing Tips, Tricks, and Techniques - page 153

Figure 2.80
8. Now we'll add some color into the eye. Click the Hue/Saturation Adjustment layer
( Figure 2.81 ) , and then in the Hue/Saturation properties select the Colorize check-
box ( Figure 2.82 ) .