Programming Depth: Interactive Movement - Flash 3D: Animation, Interactivity, and Games - page 95

Figure 4.5 Positioning the foreground waves to finish the composition
Step 8: Adjust the brightness
Select the middleground instance. Go to the Properties panel and select Brightness
from the Color drop-down menu. Set the Brightness to -20% (Figure 4.6).
Figure 4.6 Adjust the middle ground waves' brightness to -20%