First things first. My Movie is Set at 600 by 300. at 18 fps. with a Background
Color 'Black'.
Grid Spacing is set to 18 px.
You'll need to create Three Layers:
Button (Top Layer) - On / Off Button
BackDrop (Middle Layer) - Acts like a Masked layer
Light (Bottom Layer) - Light Source
For all the Layers 'Instert Frame' to Frame 5. (Do
not Instert ANY KEYFRAMES, we'll add those later)
Now Lock ALL Layers except 'BackDrop'.
Create a Box with NO OUTLINE. and have the fill in color Black.
Now Select the Box. Align the Box to Center Top
and Middle and Match the Size. Make sure you selected 'Align to Page'.
With the Box Now fitting the Size of the Movie. You will need to Select the
'Paint Bucket'.
Select the Fill Color and Choose Black and Make it a Gradient. Make sure
its Radial. make Both sides the same Color.
Make there 'Alpha' 25%. Now Change the Fill of the Box
to the Color you created.